Personal Computer News

From The Mass Storage People

iLib bring mass storage to the EPSON QXIO

Once again ICE have increased their range of subsystems to support another major
microcomputer — the brand new EPSON 0X10.

ICE with the support of Epson UK have developed this powerful SW Winchester subsystem
to enhance the dynamic capabilities of the recently launched 0X10.

SW" Winchester Subsystems 5, 10, 20, 40 megabyte.

. Easy To Install — Easy To Operate.

. No Additional Desk Space Required.

. Fast Tape Streamer Back Up.

“Lattice” — The ICE Low Cost Networking System.

For further information regarding the above system or any other ICE subsystems please
contact our Sales Department on Ashford, Middlesex (07842) 47271/47171.

ICE Limited, Littleton House, Littleton Road, Ashford, Middlesex, TW15 1UQ.

Tel: Ashford (07842) 47271/47171 Telex: 8952042 (ICE LTD G)

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PULLOUT

Micropaedia
Sound: Part 5

Concluding our opus on sound,
speech and music with more for
the popular micros.

REGULARS

Monitor 2

Problems precede launch of Sin¬
clair's Microdrive, page 2; CTA
suggests mail order bonding
scheme, page 3: Electronic mail
arrives for the Sirius, page 4; Intel
chips in with Xenix, page 5; CAD
design from Hewlett-Packard, page
6; Epsom HX2t>disk drives in. page
7; and lots more news, reports and

PCN Charts 10

Follow your favourite game and
micro

Random Access 13

Tell the world what you think

Routine Inquiries 14

With Pi Vs perambulating

helpline. Max Phillips

Microwaves 16

Got a useful tip? Spread it around a

51

- Franklin's
Tomb for the Dragon and Hummer
House of Horror for the Spectrum,
page SI Laaps and Bounds —

Jumpman for the Commodore 64
and J umping J ack for the Spectrum .
page 52. Space operas alien
invasions with Fourth Encounter
for the Vic and Cydons for the
Commodore 64. page 54.

ProgramCards 56

Games and utilities for the Spec¬
trum. Vic 20. Commodore 64 and
BBC micros

Readout 69

The new micro books

Databases 73

Buyers' guide to hardware

Game play

Clubnet 70

Contact points in the nation's user
groups

Billboard 79

Four pages of computing bargains

Quit/Datelines 88

Cover illustration by Terry Pastor

July 28-August 3, 1983 Volume 1 No 21

PCN SPECIALS

Disks on Atari 19

To get the maximum use from your Atari you need a disk drive. Richard Hawes
reveals how to get the best from the system.

Micro on video

25

Geof Wheelwright explains the techniques required for storing your screen displays on
videotape.

PCN PRO-TEST: SOFTWARE

BBC Graphics 27

From computer art to computer aided design. Nigel Cross tests packages to make the
most of the Beeb’s graphics capabilities.

Newbrain assembler

32

Walter Knight continues his look at
machine code on the Newbrain with
^ a package to take the tedium out of
low-level coding.

PCN PRO-TEST: PERIPHERALS

Turn turtle

Real turtles mean more than graphics — they
open up the field of robotics too. Ian
Scales tests a new beast that hooks up to the
Sinclair machines and the BBC.

Oric in print

34

Explore the possibilities of print with the new printer plotter for the Oric. David Janda
puts pen to paper.

Daisywheeling

Barry Miles looks at yet another contender
in the high quality/medium price print stakes.

PCN PRO-TEST: HARDW/...-

ir»

Dream Machine

Everyone, at some time, has wished for an improvement
to some aspect of their micro. Richard King goes a step further
and argues for a complete rethink about the way
micros are designed and built.

CHARACTER SET

_ .wCyndy Mile

■r David C

■rM.it Phillip* Peripheral* editor I an Seale* L
k Floyd Saycr* Art issuta— I Dolores Fjirmjn

Whcchs right W

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Wcndic Pear- - Editor s assistant 1 1 ,rrirt Arnold Art dir*
Fiona Collier PuMrshinf manner Mark Fiv n Publish,.* as

Hum. r Saieeeiocwttvct Robert Stallibi

IbyVNU Business Publications. Evelyn House. 62 Oxford Si reel London Wl A 2HG©VNU IWJ Nomaicn.ilmat herepn
rom the copyright holders Photoscfhv Quickset. I H4- 1 R6 Old Si reel. London EC I Printed by Chase Web Offset. Si Au
4 Bruton Road. London SWV. 01-7334444 Registered at the PO as a newspaper

Hanafing editor Peter Worlock Sab editor J o hn Lctticc
h.ir.l K p Software edlter Shirley Fawcett Hi
m Jim DantK- Art *4tor David Robinso
taat lane C.rcc n ADVERTISING Adverthemeot director
.*. Matthew Parrott. Beilina Williams. Ian Whorlcv.
rnquirtee ( oil Stcscn* Subscription address Frith
162 Oxford Street London W I A 21 IG 01-323 321 1
induced in whole or in pari without w ritten
kUstell. Cornwall Distributed by Seymour

PCN JULY 2H-AUGUST3. IWO

[i] k 1 1 UJ

Microdrive

The long-awaited Sinclair Micro¬
drives are set to be unveiled at noon
today, despite reports that pre-
production models of the drives
were plagued with problems.

A Sinclair spokesman has de¬
clined to comment on any potential
problems, but according to a PCS
source who has used pre-
production versions of the Microd¬
rive:

• There are still problems with the
RS232 interface on the Microdrive
expansion module;

• The Spectrum's power supply
may not be powerful enough to run
more than one Microdrive;

• The £40 Microdriscs have no

random access; only limited serial
access — so that files arc stored on a
tape loop, and must be designated
as INPUT or OUTPUT files;

# The Microdrive manual doesn't
specify how many files a Microdrive
can hold — only that it’s 100K per
drive;

# Microdrivcs and the proposed
Spectrum networking system both
use up a chunk of the Spectrum's
memory and some existing prog¬
rams might not run without mod¬
ification;

# The £30 interface module
needed to run the Microdrive
comes equipped with a second
operating system: the existing 0/5

here

won’t support Microdrive com¬
mands

But the source added that in
terms of access the Microdrives live
up fully to what Sinclair has always
claimed. The drives apparently can
access data in 3.S seconds and
handle storage of both Basic and
machine code programs

Today's launch will show what
success Sinclair has had in sorting
out the problems. Aside from the
trouble with the RS232. which is
apparently a recently discovered
problem, the power supply difficul¬
ty could be solved by adding a
separate power supply for the
Microdrive expansion module.

Sord cuts

As the home computer price war
hots up. a Japanese contender has
hit back with price cuts on its own —
the Sord M5

With £40 knocked off its price
you can now pick up the M5 for
£149.95. The machine will be selling
at the same price as Vic 20. Atari
400andT199/4A. And although the
M5s memory seems small com¬
pared to other micros it offers some
good facilities ( PCS Pro- Test. Issue
12).

Users who bought an M5 at its
original price of £189.95 will also
benefit from the price reduction.
Go back to the shop with some
proof of purchase and you'll get a
free Basic G language package
worth £35.

US Sinclairs unveiled

Timex has announced details of the
new Amcrican-look Sinclairs. The
cooly received American ZX81
(the TS1000) will be upgraded to
the Timex TS1500. The ZX Spec¬
trum will make its long overdue
debut as the Timex TS2000.

The TS2000 has a number of
changes from the British version.
Obvious additions are a full size
spacebar, cartridge socket and joy¬
stick ports. Inside, an additional 8K
ROM provides a handful of extras
for Basic, hopefully without ruining

compatibility with existing soft¬
ware. Prices will be S 1 50 for the 1 6K
RAM version and $200 for the 48K
model.

The 1500isaZX81 in Spectrum's
clothing. It has a Spectrum style
keyboard and a standard 16K
RAM. upgradable to 32K. Car¬
tridge software is planned and the
price will be around $80

The only thing left unsaid is the
availability date. They will prob¬
ably hit American stores in August
or September

Acornsoft goes multilingual

Multi lingual BBC buffs can stride
out as software developers . A fistful
of new Acornsoft languages have
finally been released

And Acornsoft is promising an
even richer range of lanugagcs for
the National Semiconductor 16032
16-bit add-on processor when it
comes out later this year.

BCPL is freshly out of Acornsoft,
along with the long-awaited text¬
books to go with the recent Lisp and
Forth launches. Yet to come are
Fortran, two versions of Pascal.
Comal. Prolog, two versions of
Logo, and one or two of the more
esoteric languages such as MU1
and Cesil.

Jeremy Bennett, who currently
heads the Acornsoft language divi¬
sion. said that the Nat Semi 16032
will be accompanied by as many as
20 different languages

'A BBC system with the second
processor and a hard disk will be
more powerful in terms of sheer
processing power than a DEC V AX
750'. said Mr Bennett So with that

kind of throughput, people will
expect to be able to use the
languages they have become accus¬
tomed to and prefer.’

The new BCPL, which is for the
existing 6502 processor , is a systems
programming language which
Acornsoft is pitching chiefly at
commercial and systems software
developers.

It comes on ROM only, and sells
for £99.95 as a complete package of
ROM chip, compiler on disk,
screen editor, assembler and va¬
rious tools and utilities. The pack¬
age also includes the user guide,
which is ready in time for the
language's launch. The compiler
was written by Richards Computer
Products.

Mr Bennett said that Acornsoft is
using the BCPL to develop its
Fortran Compiler for the 6502,
w hich should be ready by the end of
the year. Before then, a cassette or
disk -based version of Pascal S is due
— Niklaus Wirth's teaching subset
of the language.

Marathon plan

A row of perspiring micros will be
trotting round endless loops for
seven days in a marathon at Lon¬
don's World Trade Centre. The aim
is to find the most reliable 16-bit
micro of them all.

PCN will be there to referee the
contest, the London Computer
Marathon, which has been organ¬
ised by Micro. Networks — the
company that distributes the
SamuraiS 16.

The Samurai will be entering the
contest, of course, as will 16-bit
heavyweights from the stables of
Olivetti. Logica. Sage. Tandy.
Wang. Triumph Adler, and Corn-
art. But IBM and ACT Sirius have
decided not to give their official
blessing

Richard King. PC Vs features
editor, will be keeping a close eye

on the contestants in case of foul
play and says that micros that stop
running for any reason during the
seven days will get a black mark on
their score card.

The starting gun will be fired at
midday. August 10.

The micros will be performing a
fairly simple, repetitious task con¬
tinuously for a week such as sorting
and re-sorting a large file . They’ll be
scrutinised not only for the number
of breakdowns, but also for the
number of times the program is
completed Worn-out disks caused
by excessive head pressure and
buckled disks because of over¬
heated disk drives are two possible
causes of breakdowns during the
contest. Particularly if there's still a

PCN JULY 28-AUGUST 3. 1983

PCN MONITOR r~

Postal protection

By Gael Wheehmgtrt

The Computer Trades Association
is developing a plan to protect
consumers against mail-order soft¬
ware houses that don't deliver the
goods.

Association general secretary
Nigel Backhurst said he would like
to see all software houses take out
bonds with insurance companies to
ensure that suppliers meet their
orders within 56 days or return the
customers' money . And his associa¬
tion has commissioned a feasibility
study from a group of insurance
brokers in the hopes of launching
the bonding scheme this autumn.

‘We have over 100 complaints on
file — and I suspect that ’s the tip of
the iceberg,' said Mr Backhurst.
'And right now there's no way we
can deal with it.’

He cited the extreme example of
one schoolboy who recently took in
£10,000 worth of mail orders for his
cottage software business and then
simply didn't fulfill the orders And
because the boy is under age, he
can't be prosecuted and there is
currently no way for customers to
get their money back.

Mr Backhurst said that under his
proposed bonding scheme, all mail
order software houses would have
to pul up a certain amount of money
as an insurance bond against their
ability to fulfill orders — but added
that the price could be as little as £50
for small operations.

And he has started polling com¬
puter magazines in the hope of
getting agreements that prevent
non-bonded mail order houses
from advertising. Does he think this

will prove unfair to small mail-order
operations?

If they can't afford to be bonded .
then they shouldn’t be in the mail
order field,' he said.

The bonding operation would
have to be run independently of all
trade associations — including the
CTA — although he suggested that
many participants would probably
be members of a trade association
anyway.

Mr Backhurst hopes to have the
report from his insurance brokers
by September. 'At the moment , it’s
very much an exploratory idea.
Towards the end of September well
try and get a conference together of

Future

prediction

Two versions of the Future FX30
computer plus a tape backup will be
launched in September at the
European Computer T radc Forum .
Birmingham

The FX30 Slimline, at a starting
price of £3,350. has 5 or 10
megabytes of storage and a 'slim¬
line' Winchester disk. Concurrent
CP/M will be available at extra cost .

the leading mail order houses and
the major magazines.'

Mr Backhurst also said he’d like
to see mail order computer mer¬
chants bonded so that when people
send off deposits for computers
they're supposed to receive in the
mail, those deposits would also be
guaranteed if goods are not re¬
ceived within 56days. He suggested
56 days as the waiting period
because it gives the supplier twice
the usual time to meet the order

He suggested that part of the
recent rise in mail order problems
can be attributed to the number of
young entrepreneurs entering the
market with little experience.

The standard FX30 will give 50
Mb of storage and has a 20 Mb tape
backup. Buying both will cost
£4,772.50. and they should be'
available in September
But you won't have to wait till
then for an FX20, which should be
in stock at 65 Future computer
dealers now.

Each FX20 will be sold with an
IMPS (Interactive Modelling and
Planning System) financial plan¬
ning and spreadsheet package
worth £322, plus Spellbinder, the
word processor.

Newbrain printer link
plugs a loophole

In an effort to fill up the cracks in the
Newbrain edifice, such as non¬
delivery of the ‘official’ printer.
Kuma Computers has launched a
small utility to allow several com¬
mon printers to act as substitute.

N-Dump is a machine code
program which allows you to dump
out the graphics image on the
screen, producing a hard-copy ver¬
sion on the printer.

It obeys the same commands as
the graphics screen, and allows
magnification of either or both

axes. The range of printers catered
for includes the Shinwa CP-80 and
Epson's MX and FX80.

The routine has a few limitations,
however . . . It can only be used
from Basic, since it follows the
CALL DUMP. NN. NN nn
format . which works in conjunction
with the program-pointer
Another restriction is that the
routine is not relocatable

N-Dump costs £16.70 from
Kuma Computers on Maidenhead
(0628)71778.

Beeb on top

Super expansion system
for the Spectrum

U-Micros, prolific producer of Ap¬
ple cards, has moved into the
Spectrum add-on business. USP is
an expansion system, based on a
four-slot motherboard, to let you
plug all sorts of gubbins into your
Spectrum.

First offerings include a hobby/
prototyping board and an addition¬
al three-slot expansion board.
There's a dual serial port for £34.50
with software providing LPRINT,

LLIST and a dumb terminal ability .
USP I/O (£29.90) is a general
purpose parallel port. An add-on
kit (USP-CENT) provides a cable
and software to let you use this to
drive Centronics printers.

USP may not be as neat as
Basicare's stacking rival but U-
Micros (tel: 0925 541 17) has gone a
long way to giving the Spectrum an
Apple-like growth path . Socxpcct a
lot of goodies in the pipeline.

For the first time in three months
the Sinclair Spectrum has been
knocked off its perch as Britain's
top-selling micro.

In the latest PCN Charts the
Spectrum loses its place to the BBC
Model B. In the middle of a fierce
price war the BBC machine, which
costs a mere £300 more than a 16K
Spectrum, has proved to be the
most popular machine in the coun¬
try in mid-July.

According to PON's researcher
MRIB. Acorn's distribution is
largely responsible for its pushing
Sinclair's into second place. ‘BBC

distribution is very good.' said an
MRIB spokesman, ‘it has been as
steady as ever over the past few
weeks. Sinclair had a very good
early summer as far as sales are
concerned and a lot of shops may be
re-ordering, and be temporarily out
of stock.'

The spokesman also suggested
that Sinclair's promotional push
following its price cuts may have run
out of steam, but he predicted that
the Spectrum would be back on top
within weeks. ‘The charts this week
are based on very dose figures
indeed. ’ he said.

PCN JULY 28-AUGUST 3. 1W3

Il ll II —

IBM goes
Japanning
for gold

By Serge Powell

The Japanese react with unfeigned bafflement to the suggestion that
their purpose in life is to overwhelm foreign markets and to undermine
foreign industry. They Just don’t relate to the image Westerners have of
them — an army of ants stripping the local vegetation and putting
Hondas and Sanyos in its place.

This image is particularly strong in the US, where Japan Inc is
regarded with something that can only be described as paranoia in the
automobile industry and the computer business. So It is particularly
interesting to see the US fighting back, and on Japanese home ground.

In the vanguard of the US counter attack is none other than IBM.
which is by no means the dominant force in Japan that It is almost
everywhere else. But its guerilla activity Is being abetted by another US
company, Computeriand, and the link between the two is purely

East has met West in this relationship. A sophisticated retail system

attention to local conditions that is quite outstanding.

The product is not the IBM PC.

The new IBM system is called the 5550. K was first announced here
earlier this year but now as It starts to appear it promises to make quite

K is capable of handling the complexity of written Japanese as well
as, if not better than, many of the domestic models. Where basic
literacy is concerned this means having a character set that includes
two alphabets of 52 characters each and another 2,000 ideograms, all
from a modified typewriter keyboard.

For business applications, which is where IBM would hope to make
its biggest splash, between 6,000 and 8,000 characters of varying
complexity are necessary and the 5550 takes them in its stride, as
indeed do most of the native systems. K is in the other features that it

Built around an Intel 8086 it has 256K of RAM and you can hang up to
three 640K floppy drives or an 8.1Mb hard disk with diskette back-up.
Its keyboard has 61 data keys and 63 function keys. Output features
include eight colours for text and four for graphics. The software
available on the machine includes Japanese language word processing,
a spreadsheet, and other business applications.

As it stands the machine would be a formidable competitor for
front-runner NEC and for the group (including Fujitsu and Hitachi) that
contends for second place. But the key to the 5550's success, and the
message to other manufacturers looking for a niche in the Japanese
market, lies in the involvement of Japanese firms in its development and

It is no secret that IBM has worked very closely with Matsushita and
Oki in the production of the unit, as it did in the production of the PC. The
difference that this tie-up makes to the 5550’s reputation is all
important; it combines IBM's shrewdness with Japanese quality
control.

So where does Computeriand come in? The IBM 5550’s distribution
in Japan is being orchestrated by a medium-sized trading company,
Kane-Mat sugosho, and this same company paved the way for
Computeriand 's entry into the country. The arrival of this US retailing
giant was long overdue, because one of the saddest features of the
Japanese micro business has been the state of retailing.

Even in outlets for computers and related products the staff tend to
lack a certain savvy. For Computeriand, which has built a worldwide
reputation on the extent of its service and the knowledgeability of its
staff, the situation is ripe for it to move in.

In seven months it has opened 1 5 stores and within two years or so it
expects to have 250. For all its US roots, Computeriand is wearing a
Japanese face here. Its partner, Kane, has all the right connections in
Government and banking circles, and individuals in business are likely

ACT mails
via Apricot

Sirius owners will be the first to get
their hands on Micromail, an elec¬
tronic mail service launched by
ACT last week for use on the Sirius.

Apricot, and soon the IBM PC.

Apricot isn't due to reach dealers
until October, by which time the
system should be available for the
IBM. ACT says the service will
deliver letters for less than the cost
of a second class stamp.

Based on BritishTcIccom'sTele-
com Gold network. Micromail
costs £316.25 for a small modem
card which plugs inside the compu¬
ter. disk-based software which
communicates over the telephone
lines, and the annual subscription.

Micromail software on its own for
use with other tnodcms/acoustic
couplers is £109.25. and ACT says
that the system takes only one hour
to get used to.

Tony Bryan, managing director
of ACT. said: 'We don't intend to
take over the telex market — we are
aiming at small business users.

Security lakes the form of a person¬
al password, we register you when
you buy the package, and you can
transmit an A4 letter of 400 words in
less than one minute at a peak rate
price of I7p long distance and I5p
within London.’

The cheap rate — before Sam and
after 7pm — is 3.5p a minute.

MicromaH — a pillar box on your dosk

Information storage costs 20p per
unit ( = 2000 characters) per month .
and means you can hold over
correspondence for transmission.

The system is claimed to deliver
letters to the recipient's mailbox in
seconds, and you can request an
immediate reply to urgent mail An
optional radio pager can warn of
incoming messages
Micromail can produce 500 auto¬
matic copies of each letter and
provides an electronic diary as well
as a noticcboard for important
messages It amends text on the
spot and has send-read-scan com¬
mands as well as a spelling check
Mr Bryan says that ACT dealers
should receive the package in the
next two weeks.

Voltmace
moves to
joystick set

Some of the hand spans that
keyboard-controlled games de¬
mand of you would tax a concert
pianist. But there are moves afoot
to translate keyboard functions in
games programs to joystick control .

The latest supplier to take this
route is Voltmace. maker of the
Delta 14 handsets for the BBC
micro. In future all deliveries of the
handsets will come with a listing
that will transfer the functions of the
keyboard to the joystick or keypad
of the Delta 14. The idea is that
those programs that weren’t written

By way of an example. Acorn's
Meteors uses caps lock for rotate
left' and control for 'rotate right-.
Tire* is return, ‘thrust’ is the shift
key. and a careless contact with the
space bar puts you in hyperspacc'
After running Voltmace'* program
the joystick and three function
buttons can take over from the
keyboard.

The software handles a total of 1 6
keyboard functions, and it will work
with any program that uses Inkey or
Osbytc signals to detect key de¬
pressions.

The handsets themselves cost
£10.95. and an adaptor box adds
£13.95 to this

Voltmace is on Baldock (0462)
894410

£300, tfca bfch rosatutton Ranter £550.
Catron is an Cavantiy 102031 21247.

PCN JULY 28-AUGUST 3. IW3

PCN MONITOR

Intel boosts Xenix

In a move which brings the afford¬
able super-computer a step nearer.
Intel has announced a version of the
Xenix operating system for its
iAPX 286 series of chips.

The company had publicly
thrown its weight behind the Xenix
operating system last year when it
said it was planning an operating
system on a chip, the system in
question being Unix

It now transpires that it has
chosen to develop Xenix 286 in
conjunction with Microsoft's ver¬

sion. and in the process has en¬
hanced the design to make the
system attractive to commercial
users.

These extras include functions to
recover data which may have been
damaged by a loss of power, and
operator-security in the form of
record and file locking, which
should prevent unauthorised peo¬
ple tampering with restricted data.

In a further move designed to
attract commercial systems houses
and OEM companies, it has in¬

cluded driver programs for five
controller boards, w hich by provid¬
ing plug-up and go' I/O support
should make development times
much shorter, thus reducing costs.

Xenix 286 is a derivative of Bell
Labs' Version 7 Unix, designed to
run on microprocessors, and sup¬
porting multi-tasking with multiple
users. It is compatible with earlier
versionsof Microsoft's Xenix which
run on the 8086 processor, so
software already developed will still
be useable, with the new system.

However, from what the com¬
pany says, it would seem well worth
converting to the newer system . It is
said to run from three to five times
faster, which with several users will
make a big difference in produc¬
tivity.

Naturally, an iAPX 286 running
Xenix 286 'produces . . one of the
fastest commercial microcomputer
operating systems available' With
the addition of an 80287 maths
processor and memory manage¬
ment Intel could well be right.

speech into existing programs with-

out using up massive amounts of
memory

Included with the speech synth¬
esiser arc demonstration and de¬
velopment programs on cassette
and full software instructions The
instructions supplied explain how
to string together individual speech
sounds (allophoncs) to produce
your words. As there are only 64
allophones to choose from words
can be assembled at speed.

Smartmouth comes with one
year's full warranty and is available
from Tcchnomatic Ltd. (01) 452
1500.

Atari brings micro summer
camps into the cities

Most computer camps aim to give
you micro training combined with
outdoor activities and fresh air. But
40 one-week camps, organised by
local groups, will put the computer
camp idea into inner city areas this
summer.

Children between nine and 16
years will be able to join in the
activities in most UK cities, and the
charges will be nominal in most
cases.

Atari is donating a total of more
than 100 Atari 800 systems for the
London camps, which will be held

in Kentish Town. Greenwich,
Edmonton. Westminster. Haring¬
ey, Leytonstonc. and the dock¬
lands.

The camps aren't residential, but
most will provide a lunch everyday.
The training will cover program¬
ming techniques and it will aim to
give some insight into how compu¬
ters can help you in education and
employment.

The original idea for the ca
came from the national charity
I ntcr- Action T rust . which is on (01 )
267 9421.

Apocalypse
now aids
Aquarius

The imminent launch of Mattel's
Aquarius ( PCN. issue 20) will have
a number of software releases
trailing in its wake.

Apocalypse Software promises
to have arcade games and semi-
cducational programs ready for the
machine's launch. The first re¬
leases. which Apocalypse says will
include such old favourites as
Breakout, will be for the unex¬
panded version of the system

But Apocalypse plans to move
beyond cassette-based games into
languages.

Its first products for the
Aquarius, due in three weeks' time,
will cost between £8 and £10.

Mwaiaeand. Ym can Mite am
through a aarlal or pnraM i
Oatec la an Ml -Ml 2M1

Everyone wins

Everyone came away as a winner at
the Lasky 's/Daily Express Com¬
petition last week, when eight
schools shared £20.000 worth of
micro equipment.

The schools received four first
prizes of £3.500 and four second
prizes of £1,500 of computing
equipment to be selected from
Lasky's stores.

In the first heat of the competi¬
tion schools were asked to send in
essays and illustrations describing
the home of the future. Then at the
showdown at the Westmoreland
Hotel, in London, pupils represent¬
ing the schools were asked to design
and decorate their idea of a family
home in the year 2000 using Atari
800 computers with A810 disk
drive, a Pointmaster joystick and
Micropainter software .

Beeb talks

The BBC Micro's tendency to be
seen but not heard is changing
rapidly as another speech synthesis¬
er is launched (PCN. issue 20).

Selling at £37 plus VAT, Smart-
mouth is a small unit that sits
alongside the BBC. It has its own
loudspeaker, as well as an auxiliary
audio output socket.

The unit doesn't need any solder¬
ing and connects to the user port.
And due to its low memory require¬
ments ( using four to eight bytes per
word), it's now possible to put

Riva jets ink

The buzzsaw noise of a dot matrix
printer isn't to anybody's taste but
technology can be relied upon to
come up with a silent alternative.

Ink-jet dot matrix devices are in
general faster, quieter, more pre¬
cise and more expensive, with the
added drawback that they can’t
produce multiple copies. But Riva
Terminals is backing its new PT88i
from Siemens with an interesting
statistic: the West German manu¬
facturer has found that only 60 per

cent of micro users need multiple
copies.

If you find yourself in this 60 per
cent, the PT88i could be worth
looking at. It has bi-directional
printing at 150 cps. and it operates
via serial or parallel interfaces on
most popular micros. Riva expects
it to catch the eye principally of
people running small businesses.

The printer costs £595 and Riva
Terminals is on Woking (04862)
71001.

PCN JULY 28-AUGUST 3. 19H3

H-P source for graphic design

Technical jobs that need the power
of a Motorola 6800 can now be
tackled by a desk-top system from
Hewlett-Packard
The machine is called the H-P
Model 16. Hewlett-Packard distri¬
butors are selling it in packaged
form with various graphics and

computer-aided design tools. The
basic system has 540K of memory
that can grow to 4.6Mb with an
optional card cage; you can add
3. Sin Sony microfloppies or Win¬
chester disks that hold up to 10Mb.

The peripherals offered with the
Model 16 reflect the expected kind

of us£s — graphics plotters, tablets,
and printers. Distributor Crcllon
Microsystems is also offering soft¬
ware for AC circuit analysis, digital
filter design, numerical analysis,
and other scientific jobs.

The unit’s graphics output has
300 by 400 pixels and an optional

312 by 312 display. Standard lan¬
guages are HP Basic, Pascal.
Assembler, Fortran 77 and Multi-
Forth.

A system with 5I2K. graphics.
Basic 2.0 and twin 3Viin floppies
will set you back about £6,000 once
VAT is taken into account.

IMPROVE YOUR SCORES!

Teach yourself Applesoft
with new US packages

[sld«i for Apple users.

A couple of new Applesoft Basic
programming aids have made their
way from the US to British shores
How to Program in Applesoft
Basic takes you from basic prog¬
ramming up to advanced high
resolution graphics in 12 self-paced
lessons. The Programmer's Work¬
shop for Applesoft Basic gives a
Basic programmer a chance to have
a bash at structured programming.

Beginners, the company says,
will get the best out of the package
from its step-by-step introduction
and the library of useful subroutines
which the Framework program
provides. Experienced users will
find the structured approach to
Basic will help them design and
write better-organised code
Both packages cost £39.20 and
are available from Pete and Pam
Computers. 0706-22701 1 .

Welcome to the world of ATARI with Home Entertain¬
ment Atari Center - your dedicated ATARI dealer!

Come and visit our Center, you will be astonished at
our comprehensive range of hardware, software,
books and periodicals.

If you wish to phone or write we offer a complete mail
order service, and accept all major credit cards on tele¬
phoned orders.

Any ATARI products which are generally available in
the UK are available from your Center -if we don’t
stock it we'll get it for you at no extra cost, and no
deposit required. This includes special orders for im¬
ported and pre-UK release items

Right now we are importing the following magazines
direct from the US ANTIC. ANALOG, COMPUTE'
and SOFTSIDE which is currently available only
through us and is renowned for its listing and depth
of reviews.

We think you’ll find our service second to none. We’re
all ATARI enthusiasts dedicated to the cause.

Home Entertainment atari center

212-212 BroadStrwl B.rminKhdm BIS 1AY 021-643 9100

•Horn* EntrrtJinmrnt Lid >» in independent deiler in Alin jnd imociited product'

Alin Alin 400 jnd Alin AVire Ifidemifk' ot Alin IntefnilmnillUkl Lid

14 SUPERB GAMES NOW WORK
WITH YOUR KEMPSTON JOYSTICK

Spectres

Penetrator

Horace Goes Skiing

Invaders

Gulpman

Arcadia

Molar Maul

3DTanx

Frenzy

Escape

Hungry Horace
Painter
Spawn of Evil
Flight Simulator

Available from your nearest computer dealer
or direct from

FFprogram factory

39 Railway Rd. Darwen Tel. (0254) 776677
Trade distribution by:

PCS □ISTRlBUTlDfl

Umt 6, Scotshaw Brook. Branch Road.

Lower Darwen. Darwen BB3 OPR
TeL (0254)691211

Entertainment JtarI NEWS

PCN JULY 28-AUGUST 3. 1983

iLkikJ

HX20 disk devised

Epson has always presented its
HX20 as a business machine but it
has taken an outsider to supply the
missing ingredient, disk drives.

Maidenhead systems house
Kuma has released the drives. It has
previously specialised in software
for the Epson machine and has
extended this to produce an operat¬
ing system to go with them.

For £572.70 you get the dual
drives, disk operating system and
Basic . giving you 655K of formatted
storage.

Epson is currently putting the
finishing touches toils own disks —
software is being prepared before
an official launch. According to an
Epson spokeswoman the devices
are not yet available in sufficient

quantity to go on sale in the UK.

Kuma has also produced the long
awaited Deskmastcr 5 — also for
the Epson ( PCN , issue 9). The last
of the Deskmaster scries to mater¬
ialise is described by Kuma as an
enhanced communications pack¬
age' which provides editing facili¬
ties. For example, this £45.45
package enables you to prepare text

before you go on-line to an electro¬
nic mailbox.

And for anyone needing a word
processor, the company has pro¬
duced a low cost package based on
the Sharp MZHOA For £862. 50 you
get an MZ80A micro. Shinwa
printer, interface card, paper and
cassettes.

Kuma is on (0628) 71778.

Mouse comes out of traps

A mouse from Tclevideo should be
on the loose this autumn, priced at
£103.45 and specifically for use on
the company's 8 and 16-bit business
computer systems.

Tclevideo spokesman Sam
White said: ‘The mouse will enable
you to alter display data on the
screen without using keyboard

commands, and will be good for
word and graphics processing,
spreadsheets etc.'

The race to deliver a working
mouse is moving into the home
straight. Microsoft's £140 mouse
isn't available as yet, and Texas
Instruments is still working on its
own version.

Peach packs pass test

Zenith Data Systems has made sure
that business users will be able to
buy tested software to run on their
Z100 micros by putting Peachtree
packages on to the system.

The system implemented goes
under the collective title of Peach
5000 It runs under MSDOS (Z-
DOS in Zenith parlance) and

includes a word processor, financial
planner, and database.

Zenith dealers will be carrying
the Peach 5000 series and it » ill cost
you £392 Sweetening the pill are
ten floppy disks and a utility
program to convert Wordstar files

Zenith Data Systems is on
Gloucester (0452) 29451.

serial j*
'nterf/ce ”

of rto* Mu. and parity and to adapt KmII to

The Sad- Teaching Serial Interface to available hr -

W Inchon bee list r. 3a. 0-5*00 Wuppertal 2. West &

GCC (Cambridge) Ud

ALL PRICES INCLUSIVE OF VAT.

NEW DFS ( ANCOM) with utilities disc and manual

£34.45

COMPLETE DISC INTERFACE KIT (inc of
Ancom DFS with utilities disc and manual) £103.50

BBC MODELS

BBC Model A

BBC Model B

BBC Disc Interface Kit

BBC Disc Interface Kit + 1.2

BBC A to B Upgrade Kit

BBC Memory Upgrade (8 x 4816-100ns)

BBC Model B + Disc Interface

Wordwise

BBC COMPATIBLE DISC DRIVES
TEAC SLIMLINE

F D 55 A 40 Track Single Sided 1 00k
FD 55B 40 Track Double Sided 200k
FD 55E 80 Track Single Sided 200k
FD 55F 80 Track Double Sided 400k
FD 55 A2 T rack Single Sided Twin 200k
FD 55E2 80 Track Single Sided Twin 400k
FD 55F2 80 Track Double Sided Twin 800k
80-40 track swilchable + PSU
Single Drive 40 Track (100k) + PSU
Dual Drives 40 Track S S (200k) + PSU
Single Dnve80TrackS S(200k) + PSU

* ALL PRICES INCLUSIVE OF VAT

* Stock subject to prior sale

£299.60
£399 00
£78 77
£90 00
£48 00
£24 50
£490 00
£44 85

£228 00
£270 25
£241.50
£250 00
£345 00
£454 25
£609 50
£609 50
£228 00
£380 00
£299 00

PLEASE PHONE FOR P&P CHARGES
Single Drive 80 Track D S (400k) + PSU
Dual Drives 80 Track D S (800k) + PSU
Disc Drive Cables (single)

Disc Drive Cables (dual)

MONITORS
KAGA RGB 1 ¥ Colour
BMC Green Screen
Sanyo 14" Colour
PRINTERS
SeikoshaGPIOOA
SeikoshaGP 100 V
SeikoshaGP250X
Epson FX 80 ST 3
Epson RX80
CTICP80*NEW
NECPL8023-C
DP510

Printer Cable for BBC

ZX SINCLAIR

ZX81 Home Computer

ZX81 16k RAM Pack (Memotech)

ZX Spectrum 16k
ZX Spectrum 48k

ZX Spectrum 1 6k-48k memory upgrade

ORIC

48k One

JUPITER ACE NOW IN STOCK

* PLEASE PHONE FOR P&P CHARGES * E&OE

£390.00
£699 00
£14.00
£15.00

£295.00

£110.00

£295.00

£230.00
£270 00
£316.00
£440.00
£330.00
£345.00
£340 00
£34500
£11.00

£49 95
£28.75
£99 95
£129 95
£24.00

£169.00

GCC (CAMBRIDGE) LIMITED

66 HIGH STREET, SAWSTON, CAMBRIDGE CB2 4BG
TEL: 0223 835330 (2 lines) TELEX: 817672

PCN JULY 2S-AUGUST 3. I9R3

hhhhhh

■pkli I L1 J w 1 1 L»J

Drawing on the Sirius

Designers and draughtsmen can
ditch conventional drawing board
methods and pick up a computer-
aided design system. ESS Draw,
from Anglia Business Computers.

The system runs on a 256K Sirius
and costs £8(X). It is aimed at
applications that include
architectural drawings, kitchen de¬
sign. mechanical drawings,
schematics, flow diagrams and so
on.

ESS Draw allows the user to
create drawings of any size or scale
Drawings can be stored on disk and
can be output on a plotter or printer
at any point during the drawing
process.

Text of any size can be inserted on
the drawings at any position and a
window and zoom facility allows
working on the drawing at any level
of detail. Drawn objects can be
moved, copied, modified, deleted,
rotated and scaled.

The package is written in a
mixture of Fortran and 8088
Assembler and runs under the
MSDOS operating system. In addi¬
tion. the software is command
driven with two key commands.

Two other new packages the
creatively minded can look at are
ESS Plot and ESS PCB Both
packages are written in the same
languages and run under the same
operating system as ESS Draw.

ESS PCB costs £ 1 . 1 20 and is a self
contained system produced as an
aid to the design and manufacture
of printed circuit board artwork.

ESS Plot is a graphics package
designed for both the business and
scientific user. Selling at £340. it can
be used on a stand alone basis or
data can be generated from other
programs in standard ASCII
format.

Contact Anglia Business Com-
puters. 0223 315580

Continental

confidence

Is there something about the way
that Continentals make floppy
disks? The French manufacturer
Rhonc-Poulcnc has now followed
the lead of BASF, from West
Germany, in offering a lifetime
guarantee on its floppies
The deal offered by Rhone-
Poulcnc means that any customer

who finds a fault caused cither by
the materials or the workmanship
on a Flexcttc floppy disk will be
entitled to have it replaced free,
regardless of when it was bought.

Rhonc-Poulcnc produces Kin and
5 '/on floppies, single and double
sided and single or double density,
in the Flexcttc range. The disks arc
polyester based and specially
coated to give a uniform surface

Rhonc-Poulcnc can be contacted
in the UK on (0582) 605551.

ATARI SAFARI —
URTMCth*

Beeb fivesome

Natural summit for IBM PC

The mainframe software company
Adabas is aiming to take some of
the sting out of data processing for
the personal computer user with a
product to link the IBM PC to an
IBM mainframe.

It isn’t the first to try this tack —
Cullinane and Cincom have also
gone down the same road. Adabas
claims that the combination of its
database management system and
its Natural programming language
will be what makes the difference

Natural is a language of the type
known as fourth generation’ It is
intended for non-experts and is

supposed to turn them into prog¬
rammers. By putting it at the
disposal of those of you with an IBM
PC Adabas reckons to give you the
resources of the mainframe net¬
work without the headaches of
large-scale data administration or
the overheads of a programming
department

As a tool to increase the produc¬
tivity of executives with PCs on
their desks you might look askance
at this But as another string to the
PC’s bow in general applications it
could be worth looking at.

Adabas is on (0332) 372533.

New out from software house
Quicksilva arc five games for the
Spectrum and an Art Design prog¬
ram for the BBC Model B

Bccb-Art at £14.95 uses the
BBC's graphics capability and acts
as a sister program to the company s
Music Processor.

Using Bccb-Art. you can put
lines or shapes on to the screen
using a joystick or cursor keys. You
can use all 1 6 colours in mode 2 and
can save the picture on cassette for
reloading later.

3D Strategy for the Spectrum is
based on 3D noughts and crosses.
Like all the new Spectrum prog¬
rams from Quicksilva. it costs
£6 95

Aquaplane is an arcade game for
water-borne adventurers. Xadom,
another arcade game, involves
avoiding Watldogs. Vampbats and
Antimattoids as well as fighting
with Vibe Vipers. Num Skulls and
Cvbots. Velnor 's Lair is a dungeons
and dragons style adventure game.
Smugglers Cove involves looking
for the inevitable treasure.

Director Mark Eyles says these
programs can be bought in all main
outlets such as Smiths. Boots and
Lasky’s as well as small retail shops.
In the future, some record shops
should stock these programs, now
that CBS has become the exclusive
manufacturer and distributor of
Quicksilva’s range in the UK.

PCN JULY 2K-AUGUST 3. 1983

QUESTION

WHERE CAN I BUY

NEWBRAIN ‘A' 32K
NEWBRAIN ‘AD’ 32K
SINCLAIR ZX81 IK
SINCLAIR SPECTRUM 16K
SINCLAIR SPECTRUM 48K
ORIC-1 48K
SINCLAIR ZX PRINTER
SINCLAIR ZX81 RAM PACK
SEIKOSHA GP-250X PRINTER
SEIKOSHA G P-1 00 A PRINTER
SANYO SCM12H GREEN MONITOR
SANYO SCM12N GREEN MONITOR
BMC BM12E GREEN MONITOR
JUKI 6100 DAISYWHEEL PRINTER

£268.00

£298.00

£39.00

£99.00

£129.00

£139.00

£39.00

£28.50

£260.00

£215.00

£100.00

£85.00

£100.00

£458.00

CARRIAGE: 1 item £4.00, 2 items £3.50 each. 3 items £3.00 each, 4 or more FREE

ANSWER:-

WHY NOT COME IN AND SEE US
AT OUR NEW SHOP
44 NEW BRIGGATE, LEEDS 1
NEXT TO THE GRAND THEATRE

miCRDCELL CDmPUTER SVSTEmS

ELIMINATE

FAULTY

CASSETTES

DataClone is the first com¬
pany in the UK established
specifically for the duplication of
data cassettes.

PCN Charts

You’ve followed the micro charts — now here’s the games top 30 compiled
from both independent and multiple sources across the nation. They reflect
what’s happening in high streets in the two weeks up to July 21 and. like the
micro charts, do not take account of mail order sales. We’li be keeping them
up to date, showing new positions every two weeks, so watch for the changing
status of your favourite games.

The micro charts this week show the number of machines sold in the

All other duplicating houses
are audio oriented — only Data¬
Clone has a duplicating system
designed from scratch purely to
handle computer information.

Creatly improved reliability
in data transfer rates from 300 to
beyond 2400 baud — previously
unattainable.

Top Thirty

r«4h

'ZPGtfi

fev/

All formats catered for Quan¬
tities from 200 to infinity.

Contact us now for brochure.

DataClone — the. first
specialist service for computer
cassettes.

DATACLONE HAS
EXPANDED, PRODUCING
AN EVEN EASTER
TURNAROUND. NOTE
NEW ADDRESS.

DATACLONE

UNm

ROSL1N SQUARE
ROSLIN ROAD
ACTI ON, LONDON W3
TEL: 01-993 2134
TELEX: 21879

\

i i'A L

/

}

w

> « i

unarunner

^ - -

J

GAME TITLE

PUBLISHER

MACHINE

PRICE

▲

1

(2)

Jet-Pac

Ultimate

Spectrum

£5.50

▲

2

(8)

Penetrator

Melbourne

Spectrum

£6.95

▲

3

<6>

Gridrunner

Llamasoft

Vic 20

£8.50

V

4

(3)

Trader

Quicksilva

Spectrum

£9.95

▲

5

(7)

Transylvanian

Tower

Shepherd

Spectrum

£6.50

A

6

(ID

Ah Diddums

Imagine

Spectrum

£5.50

▼

7

(4)

The King

Microdeal

Dragon 32

£8.00

▼

8

(5)

Arcadia

Imagine

Spectrum

£5.50

A

9

(13)

Killer Gorilla

Micropower

BBC

£7.99

A

10

(— )

SS Enterprise

Silversoft

Spectrum

£6.00

▼

11

(1)

The Hobbit

Melbourne

Spectrum

£14.95

A

12

(14)

Might Simulation Psion

Spectrum

£5.95

A

13

(20)

Zaxxon

Datasoft

Atari

£29.90

A

14

(18)

Black Hole

Quest

Spectrum

£6.00

A

15

(21)

1 imegate

Quicksilva

Spectrum

£6.95

►

16

(16)

Moon Raider

Micropower

BBC

£7.99

A

17

(— )

Matrix

Llamasoft

CBM64

£8.50

▼

18

(15)

Miner 2049er

BigFive

Atari

£29.95

A

19

(— )

Planetoid

Acornsoft

BBC

£9.95

A

20

(24)

Everest

Shepherd

Spectrum

£6.50

A

21

(28)

Psst

Ultimate

Spectrum

£5.50

A

22

(30)

Knot in 3D

New Generation

Spectrum

£5.50

A

23

(26)

3D Combat Zone

Artie

Spectrum

£4.95

A

24

(25)

Xenon 1

UK

Oric

£5.50

▼

25

(10)

Frenzy

Quicksilva

Spectrum

£4.95

▼

26

(12)

Krazy Kong

Interceptor

Vic 20

£6.00

▼

27

(9)

Horace Goes
Skiing

Psion

Spectrum

£5.95

▼

28

(17)

Panic

BugBvte

Vic 20

£7.00

A

29

(— )

Preppie

Atari

Atari

£21.00

A

30

(— )

Pakacuda

Rabbit

CBM64

£5.99

PCN JULY 28-AUGUST J. ISW

PCN Charts

two-week period ending one week before publication date, so they tell the
story in the high street between June 7 and July 21.

Neither mail order nor deposit-only orders are included and the prices
quoted are for the no-frills models and include VAT. Information for the
top-selling micros is culled from retailers and dealers throughout the country
and, like the games, will be updated every alternate week. W atch the arrows
to see how they’re doing.

PCN Charts are compiled by MRIB (Computers), London, (01) 408 0250.

HARDWARE

Top Twenty up to £1,000

1

(3)

BBC B

£399

(AC)

2

(1)

Spectrum

£99

(SI)

3

(4)

Vic 20

£150

(CO)

4

(2)

Dragon 32

£175

(DR)

5

(5)

Atari 800

£300

(AT)

6

(9)

Commodore 64

£229

(CO)

7

(6)

ZX81

£40

(SI)

8

(7)

Oriel

£99

(OR)

9

(8)

Atari 400

£150

(AT)

10

(10)

Tl 99/4 A

£150

(Tl)

11

(12)

Newbrain A

£228

(GR)

12

(ID

Colour Genie

£168

(LO>

13

(13)

Lynx 48

£225

(CA)

14

(17)

Epson HX20

£472

(EP)

15

(18)

Tandy Colour

£240

(TA)

16

(19)

Sharp PC1500

£169

(SH)

17

(15)

Apple lie

£969

(AP)

18

(— )

Jupiter Ace

£90

(JU)

19

(14)

Sharp MZ80A

£549

(SH)

20

(— )

Acorn Atom

£174

(AC)

Top Ten over £1,000

►

I

(1)

Sirius 1

£2,754

(ACT)

►

2

(2)

IBM PC

£2,392

(IBM)

▲

3

(10)

Commodore 8096

£1,374

(CO)

▲

4

(5)

DEC Rainbow

£2.714

(DEC)

▲

5

(6)

Osborne 1

£1,581

(OS)

A

6

(7)

HP86A

£1,541

(HP)

▼

7

(4)

Apple 111

£2,780

(AP)

▼

8

(3)

Olivetti M20

£2,754

(OL)

▼

9

(8)

Epson QXIO

£1,700

(EP)

A

10

(— )

Sanyo MBC 2000

£2,242

(SA)

AC — Acorn Computers ACT — ACT Apple Computers AP — Apple AT — Atari
International. CA — Camputers CGI Computer Games Ltd CO — Commodore DEC —
Digital 00 — Dragon Data IP— Epson 00 -Grundy Business HP — Hewlett-Packard ■
— IBM K — Icarus Computers. Ml — Jupiter Cantab 10 — Lowe Electronics U — Lucas
Logic. 01 — Olivetti. 00 — One. 00 — Osborne Computers Corporation. SA — Sanyo SM —
Sharp SI — Sinclair 00 — Sord TA — T andy T1 — Texas Instruments.

Find out why on:
01-674 4572

QUEST

Stt

FOR ANY
SPECTRUM

Price ^

£5 -50 SIMPLY THE BEST

If you're looking for the successor to
"Arcadia", look no further than
BLACK HOLE [P.C.W.)

The explosion effects are some
of the best we have seen (Sine User)
The Black Hole is a techntcoloured
confection of special effects very
demanding, magnificent graphics |Soft|

THE BLACK HOLE and VIOLENT UNIVERSE ar«
available from QUEST MICROSOfTWARE, 119 THE
PROMENADE CHELTENHAM. QLOS at CS SO each

=h HI

B3661 IVr^Z!

Mr. Chip

SOFTWARK

LLAMASOFT!!

awesome games software

& VIC 20

(rx'-fj CBM 64

:%*/ ATARI

SPECTRUM

HOW m BOOTS. LASKBYSt
MANY RETAILERS OR FROM
49 MT PLEASANT, TADLEY. HANTS

TEL. 07356 *478

PCN JULY 28-AUGUST 3, 19R3

irrwA\i.wm

Don’t carry a LOAD on your shoulders, unburden yourself on PCN's letters page.

Share your thoughts in' the
UK's liveliest micro weekly
letters columns. Funny, feisty
or fanciful, your letter could
win you £10 if it’s of star status.
WRfTITO: Random Access.
Persona / Computer News,
VNU. Evelyn House. 62
Oxford Street . London W 1 A
2HG.

Justice for
rough trade

As an owner of a Spectrum and
a trading standards officer. I
was very interested in Ralph
Bancroft's article on insurance
cover for micros (PCN, issue
19). One thing he fails to cover
is the legal aspect, ie the Sale of
Goods Act.

PCN £10 Star Letter

If the goods are of faulty
manufacture and the fault was
not readily discernible on
purchase, or the buyer did not
have an opportunity to examine
the goods, or the goods are not
fit for the purpose intended,
then the purchaser is entitled to
some redress, ie replacement, a
repair or a refund (possibly
minus something for use) and
this right is against the retailer
as well as the manufacturer,
despite anythi ng to the contrary
in the guarantee.

Indeed, if the guarantee says
anything to the contrary the
seller and/or the manufacturer
may be committing a criminal
offence as per the Consumer
Transactions (Restriction on
Statements) Order.

In other words, if your micro
fails and you can show it is due
to faulty manufacture rather
than abnormal use or abuse,
then it is up to the retailer to do
something about it.

/ D Moseley
London E6.

A sprite
old mess

Top marks for bad operating
manuals must surely be given to
Commodore.

Starting from scratch with a
ZX81 , it is unbelievably simple
to learn how to write simple

programs and to develop with a
mixture of understanding and
worked examples. The oper¬
ator manual for the ZX81 is
outstandingly good.

Wanting a larger capability I
bought the Commodore 64,
expecting it to be relatively easy
to expand what I had already
learned. The operating manual
for the 64 is a disgrace . and for
anything other than the sim¬
plest programs I still have to use
the Sinclair.

For example, in a multiple
choice menu the Sinclair sequ¬
ence is easy:

100 input x
IIOGOSUB 1000 x

This sequence does not work
on the Commodore but what is
worse is that there is no clue in
the manual, how a choice of
GOTO or GOSUB addresses
can be handled.

Similarly, in the section on
Sprite graphics, the crucial
instruction “POKE 2042.13" is
explained by the following
paragraph: ‘This instructs the
computer to get the data for
Sprite 2 from the 13th area of
memory. You know from mak¬
ing your Sprite that it takes up
63 sections of memory. You
may not have realised it. but
those numbers you put across
the top of your grid equal what
is known as 3 bytes of the
computer. In other words each
collection of the following num¬
bers. 128, 64. 32. 16. 8, 4, 2, 1
equals 1 byte of computer
memory. Therefore with the 21
rows of your grid times the 3
bytes of each row, each Sprite
takes up 63 bytes of memory.’

So. until I find a manual (or
an expert) to explain the ‘13'
there is no way I can use two
different sprites.

It would also be interesting to
know how to use the four
‘special function* keys, but for
all the reference to them in the
manual, they might as well not
be there at all.

My other grumble is Commo¬
dore's policy decision to make
all models incompatible.

A friend has a Vic 20 but
there is no way his software will
run on my 64. Software — or
even data disks — from a 64 will
not download into a Pet. and
even software and data for the
second generation Feti (the
8032 type) cannot be used on
the third generation Pets (the
700 series) so that any company
wanting to increase on existing
computerisation cannot intro-

Perhaps the ultimate
absurdity is that software made
to run on the 8032 will not use
the extra memory of the 8096
even when it needs it and the

their improverished program¬
mers (the hard-luck letter ex¬
memory is available, without a plaining why the n% royalties
rewrite. have suddenly dropped to £x).

After the simplicity of Sir Michael Robinson
Clive’s machines and the good Bramhall, Cheshire
operating manuals, the CBM

manuals and incompatibilities “ “ —— ““ ' “ “
are disastrous.

The sooner Sir Clive moves
into the bigger arena and res¬
cues us from this kind of
shambles, the better I will be
pleased.

Peter J Chadwick
Cobden Chadwick Ltd, En¬
gineers, Oldham.

PS. Perhaps the ultimate' absur¬
dity: the best guide I have yet
found to the Commodore 64 is
the one written by SINC¬
LAIR!!

Newbrain — food
for thought

I felt it was time to write ; being a
Newbrain owner I have sear¬
ched for programs everywhere!

Everybody, especially some the delay of your

Just what
drives Clive?

I read with great interest your
artist's impression of the Mic¬
rodrive — I had no idea my
Spect rum was goi ng to be sitting
on a lump of cheese like that!

On the other hand. I've heard
so many views of what this long
awaited kit is going to look like
that I've quite stopped believ¬
ing them.

I can imagine old Sir Clive
trundling into the activity cen¬
tre (is there one?) of Sinclair
Research Inc in his electric
three-wheeled car.

In the comer of the room a
small machine is turning out
thousands of letters:
Dear ... We apologise for
' etc. The

Dragon owners, take the mick- rest of the design team
ey for the lack of software, grouped around a two-inch
Well, now is the time to strike television pausing only to calcu-
back. late a new, later, production

Not only are there all the deadline for the microdrive:
business programs and mail LET NEW DEAD-LINE =
listing etc. but I have bought OLD DEADLINE + INT
three adventures — Life (RND*4 MONTHS) + 1
Search. The Swamp and ‘OK chappies.' he calls.
Leopard Lord — and even as I You'd better start thinking
write more are being churned about this Microdrive thing. I
out. see that Personal Computer

I am in the closing stages of News has got a rather good idea
writing one of my own which for the main format.'
has taken months to write and Maybe, by the time you
put together. receive this, the Microdrive will

Nor are there only adven- be around — I doubt it some-
tures but also all the action how. If it is. I will probably have
games you could wish for. bought one , whatever the price .
So, it’s nuts to all the anti and since I am ‘fortunate’ (is

Newbrain owners.
Dave Holmes,
Aylesbury, Bucks.

Price cut
consequences

There has been much specula¬
tion lately in many computer
magazines about software
prices. One view is that soft¬
ware producers could reduce
their prices by reducing their
profits.

It should, however, be ob- Arise. Sir Clive, this is an
vious that the producers (nam- ungloved challenge ! But with
ing no names) are rather fond of today's planned launch, the
duce the newer computer, or their profits and would prob- Microdrive saga seems to be
ably take the reductions out on over, at least for some — Ed.

that the right word?) enough to
be on the list of first 1 .OOOorders
for the Spectrum I might not
have to wait more than the
stated 28 days for it.

All the same, it has been
many moons since the drive,
revolutionary as it may be. was
announced and I think that
something should be done ab¬
out the claims that certain
companies make in this field.
James Reid
Maidenhead, Berks

accepts incompatible records.

PCN JULY 28-AUGUST 3. 1983

zmmssm

A word
for minnow

I would like to let Spectra
(Gameplay, issue 16 on Com¬
puter Scrabble for Spectrum)
know that ‘minnow’ across the
top will score 33. From his score
he looks like he needs a bit of
help. He probably managed to
find a better word himself, but a
little help from the ride* never
goes amiss.

Finding a better word is
almost as satisfying as thrashing
the Mico-Gen chess program at
level 0 — my reasoning being
that I never think more than one
move ahead at chess, so why
should a computer?

Anyway, I’m going back to
designing my noughts and cros¬
ses program — unique in the
field of computer games,
because the program is de¬
signed so the computer loses.
This program will be available
tor Ike 4SK Spectrum (a I6K
version may be available later if
the program can be satisfactori¬
ly trimmed) at £14.

An intensive media advertis¬
ing campaign will get underway
several months before it's laun¬
ched ‘only next year’.

Simon Bass
Wigan, Lancashire

Any advances on minnow? —
Ed.

Lease line
of resistance?

Having examined for some
little time the feasibility of a
novel computer application, I
was naturally interested in John
King's comments on leasing
( PCN . issues 17 and 18).

My experience is that while
numbers of suppliers advertise
the availability of credit facili¬
ties. HP or leasing, few are
prepared to elaborate — at least
to me! Some responses are
distinctly frivolous, 1 hope.

One company, for instance,
offered the Sirius 1 for £230 a
month (VAT included). I took
this to mean that if I really
intended to take their advert
literally then I should be made
to pay for my temerity.

£13 a week, a rate widely
advertised for another micro,
turned out to be applicable to a
seven-year (yes, seven-year)
lease. I suppose that it is at least
interesting to speculate as to
how the present day micro will
appear to the user in 1990!

Can it be that suppliers are
really not at all interested in
anything very far removed from
cash on the barrel, despite the

financial advantages of leasing
etc to potential business cus¬
tomers?

Do they fear that leasing may
tie them to supporting systems
which five years hence may
seem as useful as ENIAC
appears today? In fact, is the
response I have (not) been
getting no more than the result
of the old dilemma?

Rapid development = rapid
obsolescence? If so. can one
expect a bank or other financial
institution to take a different
view?

It did occur to me that I was
perhaps being altogether too
paranoid and that the poor
response was due to some other
cause — illegibility perhaps
Confusion as to my precise
requirements can be dis¬
counted as detailed specifica¬
tions were given.

Perhaps, after all, my hand¬
written letters are the cause.
Computer companies have a
marked propensity for distri¬
buting glossy handouts (rich in
pictures, short on information)
at the slightest provocation. If
inquiries were received in the
same form perhaps more atten¬
tion would be given to them.

Clearly, little business can be
expected from one who writes
in ballpoint. To be set against
this is the fact that I have
encountered no such difficul¬
ties when inviting tenders for
the supply of a system.

Could this be a modem
Riddle of the Sphinx ? Will
some enterprising sprog see the
potential for a new arcade game
‘Find a Leasing Company’?
John Hewitt
Selby, N Yorks

Mail-order

malingerers

Why. I ask myself, do certain
British micro manufacturers
insist on a total lack of effort to
produce friendly customer rela¬
tions. continually feeding us
half truths and outright lies. It’ll
be available soon, it does not
have as many features as we first
expected, but for an extra few
pounds, etc. etc.

I sent off for a package and a
few days later I received an
apologetic letter from the com¬
pany saying the cassette was in
stock, but the accompanying
book was not yet released.

I must say that this came as a
surprise, because the entire
package has been advertised a
number of times over the past
months, and I was under the
impression that that to adver¬
tise unavailable goods con¬

travened some consumer pro¬
tection act.

Thus another customer is
alienated through a company's
apparent inability to keep its
customers happy.

Should this letter come to the
attention of Acorn, please
note: not everyone with a BBC
micro only wants to shoot aliens
in various guises in various
ways, where are the language
ROMs, second processors etc
we were promised when we
spent our hard saved money on
your machine?

On a more happy note,
congratulations on a very well
presented, interesting maga¬
zine. My only complaint being
the very large percentage of
games reviews devoted to the
Spectrum, there being many
other machines deserving sup¬
port.

Stuart Plaister
Newport, Gwent

We do try to keep a fair mix of
machines in Gameplay,
although sometimes there seems
to be a bumper crop of new
Spectrum programs. But I take
your point — Ed.

The Juki’s just
a gem

Your review of the Juki 6100
daisywheel printer (June 30-
July 6 issue) was very interest¬
ing. I have used a Juki exten¬
sively over the past month, and
am very impressed — so much
so that Hilderbay is supplying
the Juki. As always happens
with something new, we made a
few mistakes at first (largely
due to the rather incompre¬
hensible manual). The paper
loads automatically to the fifth
line with the cover on without
trouble on our machine and
others we have seen . We had no
difficulty changing daisy-
wheels: if simply dropped in.
the Juki engaged the slot cor¬
rectly nine times out of ten (if it
fails, try again).

Two problems can arise in
interfacing the Juki to a compu¬
ter. If an 'intelligent' parallel
interface is used it will do things
to the con trol codes such as send
a linefeed after every carriage
return, etc. This is fine for the
typical dot matrix printer, but
disastrous for a daisywheel used
with word processing software.
In the mode used for word
processing, carriage returns are
used after every word (the
printer carriage responds by
moving very slightly). If lots of
linefeeds are added, you get
several blank lines between

words! We initially used an
Apple II with Format-80 (a
British word processor which
does very fancy proportional
spacing) and an Epson parallel
printer interface card. After
phoning the authors of Format-
80 we realised what was hap¬
pening, and wrote a (9-byte!)
routine which bypasses all the
interface card's cleverness: the
results were perfect.

The other interfacing prob¬
lem may be less usual. We were
using a standard interface
which we had used before: the
Juki failed to respond (this
happened when we were ex¬
hibiting the system at a show, of
course). We thought that we
must have damaged the printer
in transit. Back in the office, it
worked again with another
identical interface. We finally
discovered that changing a par¬
ticular chip in the interface to
another of the same type but
different make made all the
difference! (Both chips were of
reputable make, and worked
with all other printers).

Mike Salem
Hilderbay Ltd

on Microsoft

I fear I must disagree with the
letter written by J Skidmore
(PCN issue 17) condemning the
Microsoft Basic line editor.

The commands are easy to
learn, and are represented by
single letters (eg D to delete).

The provision of search and
kill facilities is also very wel¬
come. Speaking for the two
micros which I use (a TRS 80
and an ACT Sirius 1). the
so-called useless ‘x’ command,
which Mr Skidmore states acts
just like pressing Return, in fact
serves to extend the current
edited line — a useful function
indeed!

Surely the ‘x’ must be a typo,
since the ‘useless’ function de¬
scribed actually refers to the ‘E’
command, which terminates
the editing session.

The worst editor that I have
had the misfortune to confront
is the screen editor employed by
the Apple II. where simple text
insertion into a program line
requires jumping in and out of
the edit mode and the use of
various Escape sequences for
cursor movement — somewhat
confusing! No doubt the provi¬
sion of cursor control keys (as
found on other micros) would
help alleviate some of the
problems.

Alistair Moffatt
Coulport, Cove.

PCN JULY 2&-AUGUST 3, 1983

■lifllliik’HIHt!

\ Lost in a maze of bits and bytes, trapped in a forest of errors, or bugged by Basic?
_ Whatever your problem, access our HELP function . . . better known as Max Phillips.

Writ* to: Max Phillips, Routine
Inquiries, Personal Computer
News, VNU, Evelyn House;

62 Oxford Street, London
W1A2HG.

Pop art on
the One

I’m glad your magazine is
distributed in the Nether¬
lands. As an Oric owner, I enjo\
the programs and tips. Could
you explain the function of the
POP and PULL statements?
The manual doesn’t help and
experimenting hasn't given me

HJ Ten Brinke,

Groningen, The Netherlands

A POP and PULL do complex
Hilittle jobs. Fortunately, it’s
unlikely you’ll ever actually
need them . . . most Basics
don’t have equivalents. Look¬
ing at POP first, its job is to
remove the top return address
of the GOSUB-RETURN
stack.

When you call a subroutine
with GOSUB. the Oric remem¬
bers where you called it from.
Then, when you execute a
RETURN, the Oric leaps back
to the statement just after the
GOSUB. The place where the
Oric remembers this ‘return
address' is called the GOSUB-
RETURN stack. It’s called a
stack because it is a pile of
numbers. After one GOSUB, it
looks like this:

RETURN adl

If that subroutine GOSUBs
to another subroutine, you get:
RETURN ad2
RETURN adl

And so on. When a sub¬
routine ends at a RETURN
statement, the Oric takes the
top return address and carries
on with the program at that
point. So normally you can
GOSUB-RETURN until your
heart’s content. Provided you
stick to the GOSUB-RETURN
pair, the Oric handles it all
automatically for you.

But there are times when you
want to get out of a subroutine
without going back to where
you came from . POP lets you do
this. It just forgets about the top
address on the stack.

To see it working try this
program:

10 PRINT “MAIN 1”

20 GOSUB 100
30 PRINT “MAIN 2”

40 END

100 PRINT “SUB 1 PARTI”

110 GOSUB 200

120 PRINT “SUB 2 PART 2"

130 RETURN

200 PRINT “SUB 2’’

220 RETURN

Run the program and make
sure you follow what it’s doing.
Now add line 210 POP. When
you RUN the program, the
POP in subroutine 2 will ‘pop’
the return address set up by line
110 GOSUB 200. Leaving just
the return address of LINE 30
on the stack. So the RETURN
on 220 goes straight back to the
main program without going
near SUB 1.

What use is this? You’ll find
people who’ve worked with
assembly language use it more
often than those who don’t. It’s
main use is getting out of nested
subroutines when an ‘error’
occurs.

Perhaps you have an option
where pressing Escape always
takes you back to a main menu.
Rather than setting a flag,
RETURNing and testing for
the flag, you could just POP the
subroutine and GOTO the
menu. Obviously, you have to
be very careful about where
POPs get you . . . once you’re
several subroutine levels deep,
POPs make debugging very
hard.

PULL works in much the
same way for REPEAT-UN-
TIL loops. Its effects are much
less tangible because you can
often be leaping out of un¬
finished REPEAT loops with
no apparent ill-effects. Still, if
you insist on leaping out of such
things, you might as well do it in
style and PULL the REPEAT
address before you go.

A ROM do
on the Vic

/V own a Vic 20 and use the

following program to print
out a list of Bask- commands and
error messages from the Vic’s

10 FOR A = 49913 TO 49959
20 PRINT CHR$<PEEK<A»;
30 NEXT A

40 FOR A = 50039 TO 50055
50 PRINT CHRKPF.F.Kf A));
60 NEXT A

I was wondering if. by chang¬
ing the values in these locations,
new Bask words and different
error messages could be pro¬
duced. If you can't do it thb
way, how can you do it?

Neil Merer,

St Helens, Merseyside

l\ Yes . . . that would work.
•'The problem is that chang¬
ing those memory locations
isn’t easy. They, like the rest of
Basic, are in ROM. You can’t
just POKE it. Short of blowing
new ROMs for the Vic, what
can you do?

You can get at Vic Basic and
add in new commands and
doubtless create your own error
messages. It’s possible on all
versions of this Basic and you
will have seen toolkits that do it .
However, I can’t see the novel¬
ty of your own messages being
worth the trouble.

Don't give in
to Brainfade

Al cut my home computing
teeth on a Video Genie. I-ast
year, attracted by hi-res
graphics and on-screen editing,

I upgraded to a Newbrain A.
Now I find myself in an unsup¬
ported wilderness as far as
software and magazines are
concerned.

I can ill afford the cost but I
feel I must change again. My
choke is the BBC mkro. Is it
possible and practical to restrict
my purchase to a BBC Model A
while using the additional mem¬
ory and the advantages of the
Z80A as a second processor?

G K Allisstone,

Heme I Hempstead, Herts

Alt doesn't sound a good idea .

Acorn and Torch have had
enough problems getting the
Tube to work. Attempts to
connect a Newbrain unaided
(even with its technical manu¬
als) won’t be fun. Probably the
best you could do would be to
get the RS423 interface fitted to
the BBC and connect it to the
Newbrain comms port. Good
fun and useful for certain ap¬
plications but not exactly main¬
stream home computing.

Your choice is really to go for
a BBC Model B (you could sell
the Newbrain) or stick where
you are. BBC Model As were
never a good idea . . . Acorn
has now lost interest in them.
You’ll find it very frustrating to
discover everything you fancy
only runs on the Model B.

Alternatively, give your
Newbrain a chance. Software,
program listings and articles are
beginning to appear. Even
Grundy has produced some of
the add-ons it has been advertis¬
ing for longer than is decent.
And do join a Newbrain user

group. The Newbrain is a nicely
put together system. But it
needs to come in out of the
wilderness if it and its users
don’t want to be left out of
things.

Spectrum's in with
the BIN crowd

don’t seem to be Able to find
w^the user-defined graphics <
my Spectrum. If I am typing in a
listing and it requires ‘graphk
A’ or ‘graphic F\ all I get is a
letter *A’ or ‘F* and not some
amazing alkn.

The Spectrum manual is very
vague and after numerous
attempts at button pushing,
still find myself out of luck.

G Winstanley,

Sale, Cheshire

A You could spend a lot of
time looking for the user
defined graphics ... a shame
since you've already found
them. The thing about user-
defined graphics is that you (the
user) have to define them . That
is set their shape to amazing
aliens or whatever. Until then,
they are set to default
shapes ... the letters A to U.

So there are two things that
might happen in a listing for you
to type in. The listing may have
the user defined graphics separ¬
ately with a little program to
load them. If so, follow the
instructions for entering/saving
them first before entering and
saving the main listing. In this
case, you should see the charac¬
ters when you actually enter
graphic ‘A’ or whatever.

The other more common way
is for the program to define the
characters when it is run. Lots
of BIN and POKE USR state¬
ments are a dead giveaway for
this method. In this case, enter
the program exactly as it is. The
first time it is run. it will set the
shape of the user defined char¬
acters for the rest of that
session. After running the prog¬
ram, try listing it. You should
see the ‘graphic’ letters changed
into the relevant shapes.

To learn more of this magic,
try the manual from the bottom
of page 92 onwards. Once you
try these things for yourself,
they become a lot less vague.

The Vic's
roaming RAM

:ould you explain how the

/VTould yo
standard

RAM on a Vic 20

PCN JULY 28-AUGUST 3. 1983

varies from 3.5K to 5K. It is
quoted as 5K in Databasics but
the machine I have seems onlv to
have 3.5K.

Jonathan Phelan,

Jedburgh, Northumbria

II The Vic really has 5K RAM.
MThe figure of 3.5K is how
much RAM is available to you
when you switch on. Some of
the precious 5K goes on mem¬
ory for the screen display,
memory for the tape buffer and
other odds and sods including
the space needed for Basic to
think.

So it depends on whether you
quote ‘total RAM' or "RAM
free to Basic’ which figure you
use. It is possible, with a bit of
work, to reclaim some of the
1.5K back from the system.
Locations 828 to 1023 are just
used as a cassette buffer and
could be POKEd as a data store
for example.

rounded before being placed in
a string. Replace line 50 with IF
STRS a + b = STRS t THEN
PRINT “ERROR ”:STOP.

If you still have problems,
avoid decimal fractions. Do
your calculations in pennies.
All the best people do. The
most desperate technique in
Basic is to avoid floating point
altogether. Keep your numbers
as digits in strings and write
routines to add . multiply strings
and so on. It may be slow. But
the answers are right!

A decimal
pointless exercise

Ql’m writing a simple prog¬
ram to totalise invoices for
my grocery business. But it
seems that my Spectrum doesn’t
like decimal points. Here’s an
example:

10 LETa = 34.93
20 LET b = 5.24
30 LET! = 40.17
40 PRINT a + b
50 IF a + hot THEN PRINT
“ERROR”: STOP
60 PRINT “OK"

The result is “ERROR”.
Why? How can I avoid this?
Paul Calleja-Gera,

Cheltenham, Glos

A More floating point fun.

Computers can’t hold all
decimal fractions accurate¬
ly .. . bits are frequently lost
and rounded. What actually
happens and how bad the errors
are depends on who wrote the
maths routines in the Basic. In
your example above, the Spec¬
trum doesn't do too well.

All that is happening is that
the result of the addition and
the value used for variable t are
different. They may look the
same because the Spectrum will
round both values before print-
ingthem. But somewhere along
the line, there are bits that are
different.

In accounting programs, you
should ensure that arithmetic is
as accurate as possible. In your
example, the simplest dodge
would be just to convert the
numbers into strings before
comparing. They will both be

Dangerous structure
noticed

^1 have been bombarded with
^£he virtues of structured
languages. All I want to know is
what is a structured language
and w hat are all these bad habits
that Basic teaches me?

I’ve used lots of Basics includ¬
ing Sinclair Basic on the Spec¬
trum and BBC Basic. I’ve been
told that BBC Basic is a fairly
structured language but. if this
is so, I am sticking to Sinclair
Basic. I can write anything I can
write in BBC Basic in Sinclair
Basic and I get really annoyed
that I can’t jump out of
loops or arrays without losing
the data.

Brian Williams,

Clwyd, North Wales

A A so-called structured lan¬
guage is one that helps you
(even encourages you) to write
in a structured fashion. This
involves programs divided up
into sensible debuggablc mod¬
ules written in a neat, organised
manner. There are all sorts of
fiddly details such as using a set
number of recognisable
forms . . . REPEAT ... UN¬
TIL. WHILE . . . WEND etc.
But if you try reading about it,
you’ll discover that it's basically
commonsensc programming.

BBC Basic is ‘fairly struc¬
tured’ because it has words that
make life easier. Things like
multi-line functions, defined
procedures help to produce
manageable code. On to the
famous bad habits. These sins
involve chaotic programming
. . .such as leaping in and out of
loops.

No-one would stop you writ¬
ing programs this way. After
all, the most important part of
programming style is delivering
a working program at the end of
the day. But if you do let the
GOTOs get out of hand, you'll
end up working harder trying to
debug the thing.

The Choice is Yours!

But do you really know which printer le best for your
application?

As with the Computer market it’s a difficult Job these
days knowing which printer Is most suitable for your
particular needs. Whichever manufacturer you turn to
they tell you thelr's is ideal for the Job.

Well, we at Hllderbay have been In computing for over
20 years 20 years in which time we've gained an
awful lot of experience. Experience we are happy to
share with you - we are willing to evaluate your
circumstances and advise on the best printer for the
Job at keen prices. We will make sure the printer you
buy will be the best for your needs. So at the end of the
day you won't be wasting money on facilities you
won't use. nor will you have a printer which, though
cheap, won't do what you need it to.

We also have a range of software for the Apple -
l.e. Payroll *60. Bookkeeper *49. SSP *70 etc + VAT

Another First from Hllderbay . . .
Word Proce— or Syitsms for n Spectrum

At last - sensible, functional systems that give your
Spectrum a word processor facility.

System 1 A package that utilizes the Spectrum and an
Olivetti daisywheel typewriter to give you a stand
alone word processor. The typewriter doubles as
printer and keyboard but can be used as a typewriter
while still connected to the Spectrum expected
availability Mid-July.

System 8 A package that can be ‘tailor made' to suit
your needs, comprises a parallel interface, customised
Tasword Two software and printer (from our wide
range). This system can be supplied for any computer
however, we do recommend a typewriter style
keyboard for fast professional use with Spectrum.
Spectrum Software: Payroll, Stock Control. SSP etc.

Price on application _

Ideal for our System 2 package - a fast daisywheel
printer that gives 20 CPS. 10, 12. 16 CPI and
proportional spacing! Including a 1 year guarantee for
only *399. VAT Of delivery extra.

For Spectrum - Centronics type parallel Interface
Including cable and connectors. Recognises LLIST and
LPRINT Does screen copy. Complete with driving
software Only *39. 13 + VAT - please contact us about
availability. Simple word processor for Spectrum
free on request with printer or Interface orders!

PLEASE CONTACT US FOR FURTHER INFORMATION

Hilderbay

Professional Software

Hllderbay Ltd Dept PCN 4 8-10 Parkway
Regents Park London NW17AA
Telephone: 01-485 1059 Telex: 22870

PCN JULY 28-AUGUST 3. 1983

MICROWAVES

Scaled a new PEEK in microcomputing? If printed your tip will earn you a fiver.

If you’ve got something to crow
about ... a bit of magic that'll
make the world a better place
for micro users, then send it to
PCS Microwaves— our regular
readers' hints and tips page.
We'll pay you £5 if we print it.
We’ll pay you even more if your
little gem gets our vote as
microwave of the month. Think
on ... and write to Micro-
waves. PCS , 62 Oxford Street.
London W I A 2H(>.

More control on the
BBC

BBC users with MOS 1 .0 on¬
wards will know that the default
codes generated hy the function
keys can he used to enter
teletext colour changes in
MODE-: 7 For example REM
Shift-F I HELLO has the HEL¬
LO in red.

The Control-Function keys
can produce even more surpris¬
ing results Try PRINT CTRL-
FO. In MODE 7. this produces
the number 3584 ... the value
of PAGE. CTRL-Fl produces
TIME. CTRL-F2 is LOMEM
and CTRL-F3 is HIMEM.

CTRL-FO produces a value
of 144 or &90. On page 484 of
the user guide, it gives &90 as
being the token for PAGE. So
this method works by entering a
token directly from the
keyboard — strange but handy
to know.

G S Evans,

Farnhorough, Hants.

Oric addresses
DOKES and POKES

The following addresses may be
useful to Oric programmers.
62I(#26D) is the base address
of the text screen. This is
normally 48000 but DOKEing
it will stop the top lines from
scrolling. For example, to stop
the top seven lines from scroll¬
ing. DOKE with 48000+ 7*40
that is DOKE 621.48280.

Also useful in this context is
623 (#26F) which is the number

of text lines on the screen.
Normally 27. POKEing this
location will reduce the size of
the text screen. As an example,
to have a scrolling window from
lines 13 to 27 with lines 1 to 12
fixed on the screen . try program

C R Burnham,

Rose Hill, Oxford.

1G CLSs CLEAR 400.&H6FFF
20 FOR I=&H7000 TO &H7O0A! READ A*i P
OKE I , VAL ( "4tH‘‘+A*) : NEXT

30 DATA 4F, 66,70,20,88, 70,21,87,70,22

,39

40 INPUT "EN1ER TWO NUM6ERS “;A,6
30 POKE &H7020, At POKE *H 7021,8
60 EXEC &H700O
70 D=PEEK (&H7022)

80 PRINT A!" EOR "tB:’;i"

Dragon manual
modified

Many Dragon users believe that
USR1 toUSR9donot work and
resort to redefining USR0 for
several uses. These functions
do work but their syntax is
wrongly described in the manu¬
al. There should lie a 0 before
the USR number. Try this
program:

10 DEFEJSR1 =
&H8015:MOTORON
20 DEFUSR2 &H8018
MOTOROFF
30 A$=INKEY$: IF
AS-’**’ THEN 30
40 IF AS=CHRS (13)
THEN

A=EJSR01(A):GOTO 30
50 A=USR02 (A):GOTO
30

The program simply turns
the cassette motor on if EN¬
TER is pressed and turns it off if
any other key is pressed.

S Ward

St Helens. Merseyside

Newbrain
screen dump

This short program dumps the
Newbrain’s screen to a printer,
assuming it’s on stream #8.

10 REM ** SCREEN DUMP

20 PUT 12
30 FOR 1= 1 TO 24
40 PUT 5: LINPUT#, AS
50 PRINT#8, AS : PUT 0
60 NEXT I: END
This can be handy while
debugging your own programs
or it might make a useful
subroutine to actually use in
them.

Quintin Gardner,

Croydon, Surrey

10 CLSi FOR A-I TO 12« PRINT "LINE"A! NEXT
20 DUKE 621,48480! REM BASE ADDR ♦ 12 LINES
30 POKE 623,14! REM 14 LINES TO SCROLL
40 FOR A = 1 TO 100
SO PRINT “THIS LINE WILL SCROLL"

60 NEXT

70 DOLE 621,48000! REM RESET BASE ADDR
BO POKE 623,27 l REM RESET LINES/SCREEN

fragrantf: how to EOR two m

EOR — what a
scorcher . . .

The Dragon does not have a
bitwise Exclusive-OR feature.
The short Basic program above
( program 2 ) contains a machine
code routine to let you EOR
two numbers together.

A W Smart,

Newport-on-Tay, Fife.

Octagonal

Dragon

The dragon can handle octal
constants as wcl I as deci ma I a nd
hex. Just put &O in front of the
number. So PRINT &O number
will convert number from octal
to decimal. It's surprising the
things you can find in Tandy
Color Computer manuals.

M Frary.

Dereham, Sorfolk.

Spectrum’s Enter
INKEYed

INKEYs on the Spectrum
won't read the shift and enter
keys. If you need these, you can
use the IN function as follows:
IN(65278) equals 254 if Caps is
pressed. IN( 32766) equals 253
if Symbol shift is pressed and
IN(49I50) equal to 254 indi¬
cates that Enter is pressed. You
can check for combinations of
these keys by using the AND
operator.

John Isaacs.

Bournemouth. Dorset.

New noise
on Oric

If you’re bored with the Oric's
predefined sounds and find
inventing your own a bit fiddly,
these calls may come in useful.
CALL#FB03 for a low click
CALL#FB12 for a steady
'white noise’. CALL#FB30
produces a buzzing sound and
CALL#FB40 gives a high
pitched sound. Finallv
CALL#FBCO produces va¬
rious sounds depending on
when it is called.

S Hummel,

Bexley, Kent

Ml tb« Dragon.

Capital idea
for Spectrum

Spectrum users who have tried
to alter the cursor type from
within a program may have
come across a problem. In
chapter 25 of the manual, a
system variable called MODE
is described as setting the cursor
type. Unfortunately. POKEing
this has no lasting effect.

Fortunately, you can achieve
the same effect bv POKEing
FLAGS2. So POKE 23658. 0
sets the cursor to L and POKE
23658.8 locks the cursor in C
mode.

David Jones,

Edmonton, London S9

New NEW
for Beeb Basic

PCS Microwaves in issue 18
featured K Wolstenhome’s
nethod for NEWing a running
BBC Basic program. Mr Wol-
stenhome presumably has a
Beeb with Basic I because the
new Basic II starts with:

8000 CMP&I
BEQ&8023
RTS

So the Beeb vanishing trick’
would probably be better if the
Accumulator was set to 1 before
the CALL. So to make a
program vanish after it has run.
use A% = 1:CALL &8<XX).

P K Hopkins,

Withington, Manchester

Newbrain cursor
elevated

One feature missing from the
Newbrain’s Editor is the ability
to send the cursor to the top of
the screen when a long page is
open. Home (PUT 12) is not
what is needed. The following
program may help:

1000 a = PEEK(92) +
PEEK(93)*256
1010 a = PEEK(a+9)-
PEEK(a+ 10)

1020 FORx =
lTOa:PUTll:NEXTx
Dave Gunthorpe.

Birmingham BI6

PC N JULY IK-AUGUST 3. 1483

Out of this world OFFER..

WE BUY GAMES CONTACT US NOW

50 games for your micro

For a limited period we are offering 50 first
class arcade games for the following micros at
a special introductory price

• Spectrum 16/48K . £8.99

• Dragon 32 . £8.99

• Oriel 48K . £8.99

• ZX811K . £4.99

• ZX8116K . £5.99

As a further offer to readers of this magazine
only we will give a FREE DATA CASSETTE
with every tape ordered

Other tapes are:

• Defender 48K Spectrum . £2.50

• Sam Slug 16K Spectrum . £3.00

• Ten Games 1 6/48K Spectrum ... £3.00

All prices are what you pay, post is tree

Please send cheques/PO’s to:

A ANC0 SOFTWARE

25 C0RSEWALL STREET. COATBRIDGE ML5 1 PX

Micro Consultants Lid

1 ra *i

CMngenieiotdetoctssing toeptucs presentment fmencmmotmngO _

msntgtment Seles tortcestmt Budget pttmnq llecttonc ms* end dels Oesescctss Smell
Business sccounont Protect menegemetv ItsOwrttndtrsmmo

INCREDIBLE OFFERS ON THE REVOLUTIONARY
APPLE MND APPLE ///SYSTEMS

APPLE lie STARTER SYSTEMS from only £1057

JUKI PRINTER . £399

MATRIX PRINTERS from as little as £289
* H: * OVERSEAS ORDERS A SPECIALITY * * *

Call (0942) - 89281 8 8761 41 for full details
APPLE II + 48K ONLY £499 + VAT while stocks last
All our products carry a 1 year warranty

• SPECTRUM •

ZXOi • DRAGON • ATARI

VK* Hi)-#’"*'

PCN JULY 28-AUGUST 3. 198’

A/eur/Stain _ _ _ v

Buy from the NewBrain Specialists^

NewBrain Models A and AD

Expanded NewBrain systems r call for prices
All the leads, cables etc. J

Software Technical Manual £50

Printers Epson FX80, RX80, Shinwa CP80, Juki 6100 etc.

From £267 4- VAT.

Recorder Sanyo DR 1 01 Data Recorder £39 + £5.85 VAT.

NewBrain Software Selection

BRAINZAP ASSEMBLER (W) An interactive assembler/editor
opening up the world of Z80 machine language £9.95

MONITOR (W) The memory manager. Examine, alter, fill, move,
dump, save, load, run, print, convert, etc. £8.00

DISASSEMBLER (W) Unravel the secrets of the NewBrain's ROM £9.95
DATABASE (G) Includes sort and search on any field, and
many other useful features £19.95

CHESS (Gr) The one you've been waiting for! £14.95

LIFE SEARCH ( W) (Adventure) Fills the NewBrain and can
take two lifetimes to solve! £9.95

BRAINTEXT (W) An easy-to-use and very practical W/P. £1 2.00

STAR TREK (W) Rid the Galaxy of the Klingon menace -
if you can! £9.00

BRAINWRITER (B) All the W/P features you've been waiting for! £34.50
EPROM VERSION £41.40

LOAN & MORTGAGE (W) Vital information for savers
and borrowers £9.95

9 HOLE GOLF (W) Random holes. Fairways and 3-D
putting. (Variable wind) £7.00

X BOMB BATTLE (B) Fast action game £9.00

Key to Software suppliers:

B = Brainwave, G = Gemini, Gr = Grundy, W = Watkiss Computers
Please write/phone for full lists of NewBrain hardware & software etc.

AUTHORS - DO YOU HAVE A PROGRAM WE MIGHT SELL?

MAIL ORDER - Free delivery for orders over £5.

To obtain your NewBrain etc., ring us on Stevenage (0438) 812439
(Access accepted) or send cheque/PO/Access number to:

ANGELA ENTERPRISES

4 Ninnings Lane, Rabley Heath,

Welwyn, Herts AL69TD

^ _ Tel: Stevenage (0438) 812439

PCN JULY 28-AUGUST 3. 1983

ATARI ACCESS

■■■■■

Having discovered the limits of the Atari Richard Hawes shows how add-ons can boost it.

Driving made easy
with the Atari

A disk drive is a useful add-on to any
computer. And on the Atari it gives
you access to more programs and
programming languages, as well as all the
usual advantages over cassette such as
speed and reliability.

To use a disk drive from Basic the
computer needs an extension to its own
operating system. This extension is called
the Disk Operating System < DOS). There
are a number of disk operating systems on
the market for the Atari , the most common
being Atari’s own DOS 2.

Atari's own 810 is also the most
commonly used disk drive. This drive is
single density and single sided, giving
approximately 90K of data storage per
SVain floppy disk . although disk drives with
larger storage arc available. Each drive
comes with a built in controller, and up to
four 810s can be attached to the Atari.

DOS 2 takes up roughly 8K of the Atari's
memory. For this reason, it is not practical
to use the disk drive on a 16K machine,
although it can be done. You normally
would require at least 32K of memory in
your 400 or 800 in order to use it.

Once DOS is in the Atari’s memory, you
have two main ways to control the drive.
The first is through the DOS commands
offered by the further extension to DOS
called the Disk Utilities Package (DUP).

Disk options available through the

XlOcom

Number

Operation

3

Open channel

S

Input

7

Get

9

Print

11

Put

12

Close

32

Rename file

33

Delete file

35

Lock file

36

Unlock file

37

Point

38

Note

254

Format disk

The second is through the commands
offered by Basic.

Basic programs held in memory can be
stored onto a disk using the SAVE
command . This stores your program on the
disk in a tokenised , memory saving format .
along with the variable name table. The
command requires you to specify cassette
or disk and a filename.

You also have the option to add an
extension to the filename. This is usually
used to describe the type of file saved
(Basic program or data file for example).
The command looks like this:
SAVE“Dn:filenamc.cxf

The device name for disk storage will be
'D* and a number from one to four
specifying on which disk drive the data will
be saved. If no number is specified then a
default of drive 1 will be assumed. The
filename can be up to eight characters long.
The first character must be a letter from
A-Z, but the rest of the name can consist of
any letter and any number. Punctuation is
not permitted and all letters must be in
uppercase.

The extension is optional and added by
separating it from the filename by a full
stop. It can be up to three characters long,
and can consist of any number or capital
letter.

Disk options available with the OPEN command

Number

Operation

4

Input only

6

Read directory only

8

Output only

12

Input and Output

The companion to this command is the
LOAD command. This is used in exactly
the same way as the SAVE command to
retrieve named files recorded on a disk,
and erases any program already in mem¬
ory. The Basic command RUN can be
extended to load and run automatically a
program saved onto disk, substituting
RUN for SAVE as in our previous
example.

In the same way the Basic commands
LIST and ENTE R can be extended to store
and retrieve files using the disk drive.
Using the LIST command however does
not tokenise the program as it saves it nor
does it save the variable name table. This
command can also be used to store specific
line number ranges to a disk.

The ENTER command does not erase
the program existing in memory and can
therefore be used to merge programs. If
you used a routine a lot in your programs it
could be listed to disk and entered into
memory each time you wished to add it to a
program.

All of the commands mentioned so far
require no additional setting up of the disk
drive before use. But some commands can
be used to access the disk drive more
directly. In order to use them a channel has
to be specially opened, with the OPEN
command in the format:

OPEN#n,op,0, “Dn:filename.ext”

The *n’ is the number of the channel
selected — DOS 2 allows eight channels to
be opened simultaneously. The ‘op’ is a
number specifying the type of access
required to the disk drive, and these are all
shown in figure 1. The next number that

22 ►

PCN JULY 2H-AUGUST 3. IW

At -£1795 it can

If you’ve been waiting for the right micro to This stylish British-built CP/M™ Micro is
come along at the right price, then the waiting is compact enough to be carried in its shoulder bag
over. Every Miracle comes with all the software for take-away computing. Yet it has a generous
needed to make it a ready-to-run versatile 10" screen and hill size keyboard, and is
business machine. Included are word- powerful enough to tackle your toughest
processing, financial spreadsheet, data business assignments with its twin 500K
management and telecommunications products, floppies and 128K of RAM (there’s plenty of
PLUS MicroModeller, the worlds leading room to grow, too).

modelling system. The \y,.ac|e’s advanced features make it faster

and friendlier than any of it’s rivals. Disk access
And that’s only the beginning of the Miracle. times are up to 500 times speedier, and the

only be a Miracle

Miracle is so easy to operate you'll be using it
productively an hour after you’ve first switched
on, even if you’ve never touched a computer
before.

If you’re in the market for a micro - desk-top or
portable - you should experience the Miracle

eturn the coupon and we’ll send you full
*ails and arrange for you to experience a
iracle for yourself at your nearest dealer.

Miracle Specifications

Microprocessors

- CPU Z80 A

- Speed 4MHz

- Z80A DMA (Direct Memory Addressing)

- Z80A SIO
-Z80A PIO

- Z80A CTC (Counter Timer Chip)

- 5 Expansion slots available

- SASI Industry standard Winchester hard disk interface
(optional extra)

Memory

- RAM 1 28K (Cache utilises 64K)

- EPROM 4K

- 60K TP A

- 192K RAM board (optional extra)

Storage

- 2 Intelligent VA' Floppy disk drives, 500 Kb
(unformatted), 400Kb (formatted) each, single side
quad density.

Ports

- Parallel: Centronics type
-Serial: Two RS232C

RS422 (optional extra)

Screen

- 10' Green phosphor, 80 x 25 display. Brightness
control and inverse video

Keyboard

- Slimline and fully detachable

- 86 keys (107 legends) full QWERTY

- Separate numeric pad

- Separate (10) programmable keys

- Coiled lead for easy and neat storage

Dimensions

- Height 220mm (8.7* )

-Width 500mm (19.7*)

- Depth 395mm (15.6*)

- Custom designed plastic casing

Software

- CP/M operating system

- Operating Guide (user friendly pre processor)

- MicroCache (for vastly reduced disk access times)

- MemoPlan Word Processing

- FilePlan Data Management

- ProfitPlan “Calc” Spreadsheet

- MicroModeller Advanced Business Planner

- Transfer (micro to micro, micrcVmodem

commu nications)

- lankey keyboard typing instructor program

I want to meet a Miracle

Name . . .

Address .

Telephone
Position . .
Company .

-V Portico Technology

■Ji \ " South Bank House, Black Prince Road, London S.E.l. Telephone: 01-735 8171.

19

should be specified is always a ‘O’ when
using disk drives.

There is also a CLOSE command to shut
off the file when it is finished with, as a file
that is left unclosed will become corrupted.
The Atari automatically CLOSEs all files
when the end of a program is reached.

The Basic command INPUT can be
extended to enter strings from the disk
within a specific file:

INPUT #n;var,var

The ‘n’ specifics from which open file to
INPUT the string. The first variable is
where the first amount of information is
read into and subsequent variables, (in¬
cluding string variables), can be added to
read in more than one bit of information at
a time. PRINT is used in the same way to
store information, variable by variable, to
disk, and NOTE and POINT are used to
step around the files randomly.

With NOTE, the first variable will
contain the current sector number (1 to
719) and the second variable will tell you
the byte mmbef (0 to 124) of the next byte
to be read or written by the computer.
POINT allows you to specify exactly where
the next rcad/write operation will occur.

PUT and GET give direct control to file
handling, and are very similar to INPUT
and PRINT They deal with reading/
writing only one byte at a time in the form
PUT #n.var.

We have already mentioned that there
arc a number 0 1 dbk control commands
available through the DUP. including
formatting disks, locking and unlocking
files. Most of these functions can be
implemented from Basic through the use
of the XIO command. The utility program
on the right includes some of these.

By using the XIO command in
the form XIO cmdno,#chno,0.0,
"Dn:filename.ext". you can perform a
number of operations. Those related to
disk access are shown in figure 2. The
‘cmdno’ determines the type of operation
and ‘#chno’ is the number of the channel
used.

Thto program uses high l«n*-numb*n. This to to
that oflet you have typtd it to. you cm LIST k to
tha dtofc and than appand R on to your own
program*.

Interface and boost use

To get the maximum use from an Atari disk
drive system, you really need the Atari 850
interface module as well. Although your
work area may seem to get cluttered with
power supplies and cords very quickly (the
Atari disk drive system with interface
module needs no less than three external
power supplies) its worth making the
room.

The interface module increases the
number of devices you can plug into the
peripheral I/O connections on the com¬
puter, by giving you two separate I/O
connections at the front (one for the line
going into the computer and one for the
line going out to the device), four serial
interface outputs and a parallel output. It
also has a second processor, gives you more
memory and the ports are programmable.

ATARI ACCESS

2 REM
4 REM
6 REM

20005

20010

20020

20030

20040

20050

20060

20070

20080

20090

20095

20100

20110

20150

20160

20170

20180

20200

20210

20220

20230

20240

20250

20260

20270

20280

20290

20300

20310

20320

20350

20360

20370

20380

20390

20400

20450

20460

20470

20480

20490

20500

20550

20560

20570

2O580

20590

20600

20650

20660

20670

••DISK UTILITIES SUBROUTINE **

•♦COPYRIGHT R. A. HAWES JUL83 **

** SILICA ATARI USER’S CLUB **

=*<12>.C<30. ,D. (.0, .C.--D, ", D.-
GRAPHICS Oi? i? :•? •• DISK UTILITIES"

7 »7 "1> RENAME FILE"

7 *? ”2) DELETE FILE"

7 I? ”3) LOCK FILE"

7 l? “4) UNLOCK FILE"

? l? "5> FORMAT DISK"!? i?

?*TE? iTES 3 U”-'— ~~«-r -

TRAP 20650

ON NUM GOSUB 20150,20250,20350,20450,20550
C**"Di " t GOTO 20010
REM RENAME FILE
GRAPHICS Oi? i? "RENAME FILE"

*7 "ENTER OLD FILE NAME "Jt INPUT A*

"ENTER NEW FILE NAME "I : INPUT B*
C*<LEN<C*M-1)-A*

C*(LEN(C*)+1)»D*

C*(LEN(C*)-M)-B*

XIO 32, 41,0,0, C*

RETURN

REM DELETE FILE

GRAPHICS Oi ? i ? "DELETE FILE"

to be “leted «

? I? "HIT Y TO DELETE "JC*5" "|i INPUT B«

IF B*<>"Y" THEN RETURN
XIO 33, ttl , O, O, C*

RETURN

REM LOCK FILE

GRAPHICS Oi? i? "LOCK FILE"

7 I? "ENTER FILE TO BE LOCKED "I i INPUT A*

C* (LEN(C«) -M ) =A»

XIO 35,#l,0,0,C*

RETURN

REM UNLOCK FILE

GRAPHICS 0«? i? "UNLOCK FILE"

? : 7 "ENTER FILE TO BE UNLOCKED "»i INPUT A*
C*(LEN(C*)-M)«A»

XIO 36,»1,0,0,C»

RETURN

REM FORMAT DISK

GRAPHICS Oi? i? "FORMAT DISK"

7 l? "CHECK DISK AND TYPE ’Y’ TO FORMAT "I, INPUT A*
IF A*<>"Y" THEN RETURN
XIO 254, #1,0,0, "Di "

RETURN

? I? "ERROR NUMBER " | PEEK ( 1 95) | " HAS OCCURRED “

? I? "RE-STARTING PROGRAM"

FOR T-l TO 800: NEXT TiRUN

22

PCN JULY 28-AUGUST3. 1983

Now a business
spreadsheet
for home computers

Clear and easy to use

2000 cells
(600 in 16K VIC 20)

Global column
width adjustment —

Variable individual
column width -

Insertion or deletion
of rows and
columns

Save, load and

erge

ibilities. -

capal

22 mathematical
and statistical functions

With Practicalc you can use your 1 6K VIC 20 or
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cash flow projections and much more.

Compare the professional features and power of
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Formatting by cell
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Fast alpha-
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Comprehensive
instruction manual

Replication across
— columns and rows

Horizontal and vertical
titles can be fixed

Graphics facility
to display your results

Powerful alpha¬
numeric sort, highest to
lowest and lowest to highest

spreadsheet to calculate the best buy.

Computer Software Associates' products are
available from good computer stores or direct from the
exclusive distributors - Marketing Micro Software Ltd.,
Goddard Road, Whitehouse Ind. Est., Ipswich IP1 5NP.
Tel: 0473 462721 Telex 98751 5.

ALL THIS FROM AS LITTLE AS £29.95

Dealer Enquiries Welcome.

Another great program from

COMPUTER
SOFTWARE

ASSOCIATES

/~ \l I VS 1 1 IX

o

Name...

Address

For more information send this coupon to: Personal enquiry ipiea*"^ □ Dealer enquiry ipieotekck) □

Marketing Micro Software Ltd. Goddard Road, Whitehouse Ind. Est., Ipswich, Suffolk IP1 5NP.

PCN JULY 28-AUUUST 3. 1983

23

DON’T JUST STAND THERE

USE THE FAST LANE

28th September-2nd October Barbican Centre, City of London

The PCW Show is Britain’s most
popular micro event. Hardly sur¬
prising, with over 200 exhibitors
showing an exciting range of
micros, software and peripherals

for business and commerce,
education, science, industry and
the home.

But if you use a micro at work

(or are thinking of buying one)
you can avoid the crush. Just clip
the coupon below and send ith
with your business card and a
cheque for £2.00 (normal price
£3 at the door!). We’ll send you a
special “Fast Lane” ticket. And
you won’t have to play the wait¬
ing game.

THE FAST LANE

Plese send me one “Fast Lane" ticket to the
6th PCW Show.

I enclose my business card and a cheque
for £2.00 made payable to the “Personal
Computer World Show”.

NAME .

ADDRESS .

Send to Amanda Stephens
PCW Show, 1 1 Manchester Square
London W1 M 5AB

VIDEO LINKS

Now, the movie of the program of the story . . . Geof Wheelwright on micro-video links.

■ the Ferguson range of video recorders
seem to handle the signals of a number of
popular micros including the BBC micro
and the Spectrum without too much
adjusting to get a stable colour signal.

■ a video recorder with manual tuning can
more easily hold a strong computer signal
than machines with ‘automatic search'
facilities.

■ Sony televisions are often the best for
producing good colour pictures on a
Spectrum.

But once they've been hooked up to the
Sony video recorder the system seems to
suffer such interference problems that
neither the TV picture, nor the computer
signal on videotape is clear.

■ even a Hitachi video recorder using a
two-year old design and tuning mechanism
can tune into the signals generated by most
micros.

Program an
action replay

Computers and video equipment are
the darlings of the 1980s consumer
technology renaissance, so it should
come as no surprise that attempts have
been made to marry them.

White the video recorder is not likely to
be anyone’s answer to cheap mass storage
in the near future, it can play an important
back-up role for your computer. Making a
habit of feeding the computer's video
signal through a VCR (video recorder)
every time you sit down for a long
programming session can often buffer you
against program crashes.

By videotaping your programming, you
can:

a) give yourself a permanent on-screen
record independent of normal disk or tape
storage;

b) analyse how you developed your prog¬
ram, to get perspective on how you
approached the problem and perhaps
prompt ideas for alternatives;

c) take a frame-by-frame look at graphics
animation and look at ways to make it more
realistic;

d) put off the decision to buy a printer, as
the VCR can perform much the same
function with an electronic ‘hard copy' as a
printer can with a paper version;

e) make better use of the two most
expensive pieces of electronic hardware
you're likely to buy (barring perhaps the
home stereo — which can also be inte¬
grated with your computer).

Just how you hook up your micro to a
VCR will depend somewhat on your
computer. Ironically, the cheapest compu¬

ter in the country is also the easiest to
integrate with a VCR.

Because it has no colour graphics and no
sound, feeding the Sinclair ZX81’s video
signal to a VCR is simple.

All popular home video recorders have a
socket at the back for a TV aerial and all
you have to do with the '81 is hook up that
TV lead from your machine to the VCR’s
aerial socket and tune it to around Channel
36UHF.

Then turn on the computer, set the VCR
to record and away you go. Videotapes can
hold up to four hours of programming per
tape, so you needn't be too worried about
having enough videotape to make real use
of the video-computer link-up.

And if you use, for example, one of the
increasingly popular four-head video re¬
corders to record a ZX81 signal, you’ll be
surprised at the quality of the freeze-frame
of your computer signal on playback .

The problem arises when you start using
colour computers or computers that route
their sound through the VCR’s speaker
system.

In order for a television or VCR to
reproduce either colour or sound they must
have a stable and synchronised signal . That
job is carried out by a sync pulse generator.
If that generator is not receiving either a
strong or stable enough signal from your
computer it will be unable to keep hold of
the signal long enough to either display or
record it reliably on the VCR. This applies
to sound as well. Care has to be taken in
trying to record through the TV sound on
machines like the Texas Instruments
TI99/4A. the Commodore Vic-20 and the
Atari.

While the ZX81 can be great buddies
with your VCR, its sister computer, the
colour Sinclair Spectrum often becomes
estranged from the machine by virtue of
the fact that its colour TV signal is (to put it
politely) sometimes erratic.

There are no hard and fast rules for
finding out which video machine will work
with which computers, although we can
offer a little advice from a series of
extensive tests.

PCN JULY 28-AUdUST 3, 19R3

Now in chip form.

I f your BBC M icro could talk, what sort of
accent would it have?

A BBC English one. of course.

Which is exactly why Acorn Computers,
w ho design«*d and built the machine, have
produced its very own speech chip featuring the
dulcet tones of Kenneth Kendall.

Caller! Speech Synthesis, it's a pair of
chips that can be plugged into your BBC Micro by
your local BBC/ Acorn dealer. On them, you 11 find
164 words/ syllables spoken in familiar fashion by
the famous retired newscaster, all of w hich can be

combined to form several hundred other words.

The chips also prov ide the “serial* proces¬
sing capability w hereby future software cartridges
can also 1m* plugged into the front of your
BBC Micro. (The machines vocabulary will be
widened via such cartridges.)

Priced £55, Speech Synthesis is available
from vour local BBC/Acom dealer. (To find out
where that is, simply call 01-200 0200.)

If voud like more information,
^WCORN he’ll complete the story. In plain
COMPUTER English, of course.

PCN JULY 28-AUGUST 3. 19S3

PCN PRO TEST

HviliMiUf*—

If you’ve got designs on your micro, Nigel Cross draws his conclusions on two packages for the BBC.

Computing as
art on a BBC

Mm t 12.95 (disk) Grafkev £7.95 (tape)
Grafstik £7 98 < tape I Pubimhar ( lares
06065 51374 OUmt "room None Outlet* Clares

program and then display it accordingly .
The other method is to perform a full
screen save (about 21 IK) and the display on
screen outside the program control.

For those who wish to incorporate
graphic designs in their own programs
there is an extra program on the disk called
Redraw. This is a procedure which can be
appended to your own programs and thus
ailow stored picture arrays to be loaded
into the program and then displayed . What
a boon to those of us who enjoy adventure
games with fully displayed locations!

Verdict

This package could make a worthwhile
addition to anyone's program library. I
hope that Clares manage to maintain their
promise of continuing enhancement yet
still keep the price within reasonable
bounds. As a bonus for those w ho purchase
the disk version, new updated versions will
be available at only the price difference.

Features nn nn

Documentation nn

Performance

Userbilrty nnnn

Reliability

Value nnnnn

Graphics packages and systems come
in many varieties and prices, and this
suite from Clares for either disk or
cassette is reasonably priced and offers
many features. The system under review
was the Grafdisk version and arrived as a
disk and three pages of notes to act as
instructions. This seemed a bit scanty at
first glance but. in fact, it was adequate to
run the system with no problems.

Features

Normal operating allows you to use
standard geometric shapes such as line,
triangle, rectangle, text, and circle: Tech¬
niques available to you include rubber
banding, colour choice, paint and fill
options.

Getting started

The starting procedure is somew hat long-
winded with page after page of instruc¬
tions. It’s a good idea to arm yourself with
pen and paper on your first attempt with
this package. Once through this initial
procedure you are offered the opportunity
of being able to inform the system as to the
drawing device — joystick or keyboard. I
tried the keyboard option.

In use

A tear-off ruler for the function keys
resides at the bottom of the first page of the
notes and is most useful. This strip shows
all of the 18 facilities available, with 9 of
them accessible through the use of function
key 9 (acting in lieu of the shift).

Of this package's features, the facility
using fill as a toggle allows either solid or
outline shapes from the selection. This is a
good feature as long as you remember
which mode you are in. Paint is an
interesting function which allows both
“doodle" and variable "brush" widths; it
seems such a shame that this facility does
not allow finer control of width viz. point to
block to bigger block etc. — Todd
Rundgren did a version of this feature in
one of his programs once!

Colour choice turned out to be very
restrictive and seemed to allow only
foreground changes. Even so. the palette
allows 16 coloured boxes down the right
hand side of the screen filled with the
colours from which you can choose in the

mode you have selected — 2-colour.
4-colour or full 16-colour. Perhaps a small
routine could be included in future ver¬
sions to allow you to re-assign physical/
logical colours so that better pictures can
be generated in the higher resolution
modes. Also, it wouldn't take a great deal
of effort to allow changes in background
colour.

Cursor control for all picture drawing is
dealt with by either joystick or the cursor
control keys and can operate at 2 speeds
toggled by the space bar. This feature
certainly speeds up the drawing sequence
without losing accuracy and can be no bad
thing.

The strong point of this package is its
ability to do fully-fledged multi-point
rubber-banding. This is a technique for
creating a complex shape using 1 to 4
points, where the lines from each point are
attached to the mobile cursor giving the
effect of rubber-bands being pulled from
those points. This facility gives you far
greater accuracy and control when you
need to handle a number of lines connected
to an apex.

Picturescan be SA VEd and LOADed to
and from disk in one of 2 methods. The first
method is to save the picture array (about
IK) and thereafter load this array into the

PCN JULY 28-AUGUST 3. 19H3

27

Slot "Mutant Herd' into your VIC 20 computer
and all of a sudden plutonium -crazed mutants will try
to eat you alive

Keep a look-out for falling boulders They’ll
crush you to death at any second

Avoid these successfully and all you have to do
is save the world by destroying the heavily guarded
Mutants eggs

"Ore Attack" (on ATARI 400/800/1200) isn’t
exactly childsplay either

Imagine yourself standing on the battlements
of a castle defending your Kingdom ajpinst an army
of ferocious Ores.

Watch out for the hail of deadly crossbow bolts
You’ve only got two lives to lose

And you've only got a few rocks, a sword and
boiling oil to defend yourself

Lose your head and you'll be decapitated
If your hands aren't sweating after that try our
other action packed titles

Therefc 'Fourth Encounter" (on VIC 20). an
exciting new game with 3 skill levels

The challenging "River Rescue' and "Music
Composer' are also on VIC 20

And to make the blood rush to your head the
successful “Submanne Commander" is now available
on VIC 20

Or, if you've got ATARI 400/800/1200. there's
the anxiety provoking “Jumbo Jet Pilot’ as well as the
best selling Submarine Commander,"

"River Rescue "and "Kickback;' all in the
shops now

Buy any one of THORN EMI
Computer gamesand you'll havetofight
off all your friends to use it

The world's greatest computer games.

PCN PRO TEST

SOFTWARE

Toolkit

for

design

Piict 19.95 (tape) 112 50 (disk I
( ompuiasolvc 01-39051 35 Otter veruon* None
MM) (ompuiasolvc

This package has a lot in common with
Grafdisk. both in the people at which
it is aimed, and the kind of features it
has on offer. It also comes both on cassette
and disk. I used the tape version, and a
joystick — though you can also control it
with the keyboard. It comes with a small
instruction booklet.

Features

After the title page and the loading
procedure have been completed the main
menu is displayed. This menu allows
colour changes, saving of pictures, loading
of pictures, change of mode (4 or 5 only),
draw/edit. complete with a set of standard
geometric shapes, exit and the facility to
dump the contents of the picture to a
printer — Epson MX80 is currently
programmed.

Colours are changed in this system by
function keys 0 to 3 for the two modes
available. These have default values of
black, white, red and yellow, but can be
assigned many of the full range of colours
for the machine . Function key 0 is assigned
to background but you need to remember
that only 4 colours can be displayed at
once.

In use

Picture saving and loading take about 4V5
minutes, so should be done only when
you’re happy with the end result. Display
mode can be changed while the program is
running but there is a drawback to this.
Due to the two available modes being
mutually exclusive any display currently
on screen will be deleted.

The facility to dump the screen contents
to the printer is an excellent idea and takes
only about 4 minutes on an Epson MX80.

Having selected and assigned the
appropriate mode and colours then you
can get into the drawing itself.

In the drawing routine the function keys
0 to 3 allow you to change foreground
colour at will. An optional edit facility also
exists allowing individual pixels to be
changed to the colour of your choice by
using a magnify function. This is an
exceedingly powerful tool for graphic
design and allows remarkable accuracy.

The draw facility contains all the
standard sort of features you would expect .
lines, triangles, quadrilaterals, circles.

FACILITY

GRAFDISK

DRAFTMATE

No. of inodes

5(0.1,2,4,51

2(4,5)

Change mode

Yes

Yes — deletes current

picture

No. colours

2,4,8 ( +8 flashing l (fixed)

2,4 (according to mode )

Foreground

according to mode —
palette select

(user definable) —
function key select

Background

Black only

User definable

Lines

Yes

Yes

Triangle

Yes— solid/outline

Yes — solid only

Rectangle

Yes — solid/outline

Yes — solid/outline

Circle

Yes — solid/outline

Yes — solid/outline

Text

Yes

Yes

Save picture

Yes — by array or screen

Yes — by array

Ixiad picture

Yes — by array

Yes — bv array

Print

Yes — not stored in array

Yes — Joystick only

Alignment grid

Yes

Yes

Multi-point R Band

Yes

No

Drawing tool

Joystick, keyboard

Joystick, keyboard

Edit

By over-draw ing

magnify area, adjust solo
pixels copy to picture

rings and text. And I found that the line
facility goes in from just one single point to
another, a pseudo-rubber-banding techni¬
que that is exceptionally responsive under
joystick control.

Verdict

This is a well thought out program with
plenty of useful tools to help you create
difficult graphics drawings and would be

well suited to the first-time computer
artist.

RATING

PCN JULY 2S-AUGUST 3. 19K3

USE YOUR APPLE FOR STAR GAZING.

Buy MicroPro

WordStar or InfoStar and get a

n

CP/M WORTH

£223!

The CP/M is offered on a single board (StarCard) which allows
full implementation of MicroPro’s most popular programs.

It represents a saving of £233 to any owner of an Apple II.

II Plus or He microcomputer

This single board (instead of three) allows you to
expand the capability of your Apple to take in the world’s
biggest selling word processing package or a data base

Contac! Ls^n^urd

PCN JULY 28-AUGUST 3. 1983

I PCN PRO-TEST]

An assembler for the Newbrain? Walter Knight takes a look at the operation behind the brains.

Assembler of order

The problem with writing programs in
Basic is that although the language is
easy for humans to follow, it's virtual¬
ly meaningless to the machine. It doesn't
take long to discover that the most efficient
way to get your micro to sit up and beg is to
give it orders in machine code — those
baffling lists of hex pairs. An assembler lets
you enter your commands in assembly
ianguagc. then converts it into machine
code, which can be listed as a series of data
lines to be read as part of a Basic program.

Features

Brainzap by Andrew Pepper, from Wat-
kiss Computers, is an assembler/editor
program for the Newbrain that lets you
type Z80 assembly language directly onto
the screen, checks it as it is entered and
arranges it in one of a number of formats
according to choice.

The program is written in Basic, and is
supplied on cassette. Both these features
mean it is slow to load and use. but they do
mean it can operate on the unexpanded
Newbrain, which is a boon to those of us
who are starting small!

Within the limitations of its format.
Brainzap assembles the full Z80 instruc¬
tion set. contains an interactive editor, and
can output the listings in four different
formats to screen, tape or printer.

Presentation

The review copy arrived in a clear plastic
envelope, containing the cassette in the
usual flip-top box, and a 12-page instruc¬
tion leaflet. The instructions assume a fair
amount of knowledge on the part of the
user, and would-be students of assembly
language are recommended to read Rod-

nay Zaks’ book Programming the Z80 for
detailed instruction.

Most of the leaflet is taken up by a
description of what the program will do.
what will be seen on the screen as it
happens, and how to enter information. At
the end. there’s a sample program ( printed
with an annoying disregard for the differ¬
ence between zero and O).

Unfortunately, there is less in this than
meets the eye, because the sample prog¬
ram as printed cannot be entered. It
requires a CALL to a subroutine HEX-
ASC (to convert hex to ASCII) which
should have been input in an earlier
exercise which does not appear in the
leaflet. Watkiss Computers hopes to be
able to send a revised instruction set to all
who have already bought the program.

In use

Brainzap loads easily from cassette — my
copy took six minutes to get almost 400
lines of Basic into the Newbrain. A line of
reverse video (black on green) then
appears asking ‘Do you want reverse
video? y/n.’ Once you have made your
choice, the screen clears and a prompt
appears consisting of the amount of bytes
left in memory (the Newbrain function
FREE) and a flashing > cursor.

The syntax required is well explained in
the instructions, with lines to be entered in
the form:

10 DSROOT: LD A. 16 ;load counter. In
the example 10 is a line number (unusually
required by Brainzap). DSROOT: is the
label, LD A, 16 is the op-code and
arguments, and ;load counter is the
comment that reminds you what you
thought you were doing when you entered
the line.

There are no on-screen prompts, so keep
the manual close by until you arc familiar
with the nine single-letter error codes that
may appear- I?? reports an unknown or
illegal instruction. U?? reports an unde¬
fined label, and so on. I couldn't crash it —
attempts simply produced error report I??
and the > prompt.

The manual is disarmingly frank about
Brainzap’s limitations. 'Brainzap'. it says,
‘doesn't do everything! They’re right
there; indeed it doesn't.

Some illegal instructions can be passed
(this is a function of a program written in
Basic to take up as little memory as
possible) and. like the manual says.
‘Brainzap can be slow'. On average, it took
about seven seconds to compile each line
on the command LIST. A , which lists to the
screen an assembled version of the current
program.

The assembled form is not stored, so
each LIST. A command will take the same
time to execute — the same is true of
LIST.M for hex pairs of machine code and
LIST. D, which produces the machine code

in data form with Basic line numbers.
Programs can be saved and loaded in the
same forms, and listed to the printer with
TYPE. The program cannot handle mac¬
ros. micro-instructions, or relocatable-
code format; everything other than line
numbers must be entered in hex. and
attempts to enter long programs tend to
produce error code M?? — short of
memory.

None of these limitations — they are all
in the manual — detract from the fun¬
damental value of the program.

Verdict

This is the first assembler I have come
across for the Newbrain, and I wasn't
disappointed. Given a reasonable under¬
standing of the workings of the ZJtt).
Brainzap is a valuable tool.

The manual could have been more
carefully checked — it really should be
possible to enter and run the sample
program as listed, for example. But
overall, it'scertainly extremely good value
for the money.

RATING

Hmm Brain/.ip Application Assembler editor
Wet £9.95 System Newbrain PtMsJwr Watkiss
Computers. 4 Ninnings Lane, Rad lev Heath.
Welwyn. HerU(04.Vt)8l2439Fantat(.isscttc

LanguanH.isicOMmrsarsmns NoncOnttrtsM.nl

order

PCN JULY 28-AUGUST 3. 1983

Powerful 84K RAM

40co*our displays to
monitor TV. High resolution
graphics and 3 -dimensional
effect capability, music syn¬
thesiser Z80 additional
processor option.

ZX Lprint interface will enable your Spectrum computer
(16 or 48K) to print on any dot matrix or daisywheel
printer with 'Centronics' input (e.g. Seikosha, all Epsons,
Star, Shinwa, Oki Microline and many others). Just plug
ZX Lprint in and LPRINT and LLIST commands will work.
And because NO additional software is needed all of
your RAM is free to take professional word processing
programmes such asTasword 2.

High resolution screen dump can be done on many
printers using optional 'COPY' software.

!!2w e229.oo

ONLY

!■ 1 add £3 Mail order or Free C.O.D.

1541 Disk Drive for Commodore 64 £229.00

•HIGH RESOLUTION GRAPHICS PRINTING"

.CORRESPONDENCE •PROGRAM LISTINGS"

dlMELECTRONICS

26 Clarence Square. Cheltenham. Gloi, G150 2JP

JUPITER ACE

£49.95

DRAGON 32

£175.00

•WORD PROCESSING

•SPREAD SHEET PRINTOUT

•ADDRESS LABELS AND ENVELOPES

MAKE YOUR
SPECTRUM
WORK
FOR YOU!

PRICESLASHED

■■UiijLj*

£139

PCN JULY 28-AUGUST 3. 1983

PCN PRO-TEST

PERIPHERALS

Ian Scales encounters a small creature with abilities in robotics and graphics.

Micros turn
turtle with
the Zeaker

Compute rs are best k no wn — and most
I used — for manipulating data.

whether it's in the form of business
finance, words or galactic mega-distrup-
tors in a game .

But micros also have the capability, as
yet little used in the personal computing
field, of directly manipulating physical
objects.

Now this area might be about to get a
whole new lease of life. The coupling of
even small-scale robotics with Britain's
biggest-selling micros opens a realm of
possiblities, and Colne Robotics has done
just that.

Its entry into the field is the delightfully-
named Zeaker Micro Turtle, not just a
turtle for a micro but a micro-turtle
measuring just Sin x Sin x 2in.

Turtles are now better known as on¬
screen graphics devices but the origin of the
species was a robot in the way of the
Zeaker.

The turtle wheels its way about a flat
surface wielding a pen under control of the
micro. Because the computer actually
controls a physical object rather than an
electronic image, educationalists greeted
turtles with ready acceptance.

But there is no reason why these fun
creatures should remain in the domain of
education. Colne Roberts has put them
into the hands of hobbyist.

The Zeaker was originally released for
use with the BBC Micro but a new version
is available for both the ZX8I and the
Spectrum. The good news is that it only
costs £79, including VAT. or £59 if you’re
prepared to build it in kit form.

Presentation

The PCN test model worked with the
Spectrum via the edge connector. The
Zeaker and its power pack are cased in
white plastic and although we received a
bare interface board, the production
model will no doubt come with a similar
casing.

Two ribbon cables connect the interface
to the controller and a single, two-metre
'umbilical’ cable runs from the controller
to the turtle where it is held aloft by a type
of gantry to stop it becoming twisted.

Instructions to control the turtle are
entered in a high level language — Snail
Logo in the Zcaker’s case.

All the turtle can do is move forward,
backwards, left and right, and raise or

lower the pen . The beauty of the concept is
that it's easy to get immediate results while
you can build up quite complex programs
to achieve good graphics with the mini¬
mum of keystrokes.

The Zeaker also possesses a set of
touch-sensitive bumpers so it can sense and
react to objects it encounters. It would be
possible, therefore, to run it through a
maze and get it to find its own way out —
with the appropriate software, of course.

Documentation

The documentation supplied with the
Pro-Test model was very much in rough
form, but as much of the advice necessary
to get going with the system relates to the
writing of Snail Logo one imagines that the
final documentation will draw heavily on
CP Software's own User's Guide which
seems adequate enough.

Fortunately, there is not too much
“talking down" undertaken here — the
documentation has an ‘adult to adult' feel
about it.

In use

Lets have a look at Snail Logo itself. Those
magical words ‘high level language' mean
that the user, conversly, needs a relatively
low level of computer understanding to get
to grips with it.

FORWARD N — moves the specified
number of steps in the current direc¬
tion.

BACKW ARD N does the same in the
opposite direction.

RIGHT N — Rotates the current
direction clockwise by the specified
number of degrees.

LEFT N — Does the same but anti¬
clockwise.

REPEAT N — Causes all instructions
following to be repeated the specified
number of times.

RFINISH — Terminates the REPEAT
effect.

SNAIL — Causes a Snail symbol to be
displayed at the end of each track.
NSNAIL — Cancels the Snail effect.
DOWN — Causes the Turtles tracks to
be visible (pen goes down).

UP — Pulls the pen up.

These are examples ol the commands
available in Snail Logo.

Like Basic. Snail Logo stores a series of
easy to understand commands. Each
command executes a block of machine
code when it’s called up by the program —
rather like building a prefabricated house.

Like house-building the prefabricated
approach in computer programming
makes the whole thing easier but com¬
promises somewhat on a programmer's
flexibility. Like the prefabricated house
builder you're limited to a relatively small
set of combinations.

As far as program levels go Snail Logo is
even higher on the scale than Basic. As
mentioned earlier, when manipulating a
Turtle you only have a certain number of
options anyway — forward, back, and so
on. It’s how you combine and repeat them
that's most important.

Snail Logo's main feature is the way it
can command the Turtle in a very
‘English-type’ way, without the imposition
of a lot of numbers or comparatively
complicated procedures.

When entering instructions you don’t
have to worry about line numbering, as you
do when programming in Basic. Instead
you simply enter a command. It reappears
numbered and verified at the top of the
screen a la Sinclair itself.

Snail Logo is loaded from Cassette in the
normal way once the hardware has been
configured. The normal sort of menu is
displayed and after setting a couple of
parameters you can get straight into the
task of drawing things on bits of paper.

The example used in the Snail Logo
documentation to introduce the newcomer
is:

REPEAT 6
BACKWARD 1
RFINISH
END

REPEAT 6 indicates the number of
times the operation below, in this case a
backward movement of one step, is to be
repeated. RFINISH tells the computer
that the repeating procedure is over and
END signifies the obvious. You can’t get
much simpler than that, can you?

Well, yes you can actually. Once this
little program has been keyed in it is
possible to define it as a separate procedure
by giving it a name and number. So when
you come to write another Snail program
you simply include the procedure as a
separate line.

To make it even easier the commands
can be defined on the keyboard with, in
most cases, their first two letters only. As
many of the commands err on the long side
(BACKWARD and FORWARD for inst¬
ance) this cuts down on even more hack
work.

Verdict

The Zeaker Turtle worked well, but was
noisy. Although it's a very versatile little

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PCN JULY 28-AUGUST 3. 1983

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PCN PRO TEST

A high printer capability in one direction
will probably cause either a low capability in
another or a higher price. Economy is a
negative way of expressing price.

If a printer has lots of everything it will
close the price/ performance gap.

9 " ***1 '0123456789 : ; <=>?@9BCD£FG
HlJKLnN0PQRSTUUUXY2CNj-_«Abcdtf9hUk Imno
pqrstuvuxyz ( ! )~B

David Janda examines the ins and outs of the newly released MCP-40 printer/plotter from Oric

It is said that software can make or break
a micro. If the software is no good then
nobody will buy the machine. This, to an
extent, is now true of peripherals. Users
are not content with the basic machine —
they want to add to it with printers,
modem, joysticks and so on.

One Products International, which
promised a variety of peripherals to go wit h
the Oric- 1, is now releasing the first of
them: the MCP-40 printer/plotter.

The MCP-40 is the first printer available
for the Oric-1. It will, no doubt, give the
Oric owner an opportunity todo some hard
copy graphical work as well as text
processing (of sorts). The MCP-40's role as
a plotter enables you todo some pretty neat
graphical work, and this is shown on the
printer demonstration cassette supplied
with the printer.

Features

The MCP-40 has an impressive specifica¬
tion. with many features to be found on
plotters at three or four times the price. For
your money, you get four-colour printing
or plotting, variable character sizes, and
pretty good plotting definition (0.02 mm).
There is software in a ROM inside the
printer, and this provides a range of
print/plottingfeatures. Axescan he drawn,
text can be rotated, plotting can be
absolute or relative and so on.

All these features can be accessed from
basic or Oric-FORTH. There is. however,
manual control over colour select, line
feed and paper change.

Documentation

The documentation supplied with the
printer is quite detailed yet confusing in
places. A brief section is devoted to setting
the printer up to a computer — I didn't say
the Oric. because it gets very little mention
n the printer manual.

All the graphic and text commands are
explained well enough and there is a long
example program at the back of the manual
for you to type in. I did and found that it has
several errors!

In use

Setting up the printer was very easy
although Oric omitted to say what amper¬
age the fuse should be . I tried a 4 A fuse and
all worked well.

By default, the printer will give 40
characters per line, like the Oric screen.
But as the Oric only uses 38 columns for
listing programs, there will be a slight
wrap-round if the line is long.

All the commands and control codes are
passed to the printer by using LLIST.
There are control codes for graphic and
text modes as well as line feed and so on.
The pass graphical information to the

Plotting
with Oric

•rioting, tfe paper >*

HI M itdeway*. When printing

The four colours I red, blue, gr
hoMaroo the printer. To achim
Is In progress, a small lever oi
forward as well. The colours are changed by the barrel moving to the left of the printer where a small metal
lever ‘dicks' the barrel over to the required colour. The ink cartridges are good for 250 maters (825 feet),
printer, the data has to be held in strings of For £170 I think the MCP-40 is a little

text. So to change the colour of the pen to
red you would enter:

10 PRINT CHR$( 18): LPRINT “C2”
where C is the code to change colour
A few odd things happened now and
then. The printout got corrupted with odd
squiggles. and I found out that this is cured
by turning off the keyboard scanning
interrupts. Also, if you think that the TAB
function works strangely on the Oric, it
does so on the printer as well.

Using as a separator caused text to be
separated to a wide degree.

Verdict

Throughout the tests, the printer worked
well . Plenty of ventilation is supplied to the
MCP-40 and there was no overheating.

The quality of output was fine, but the
black could have been a little darker. Noise
level was acceptable, but things tended to
get loud when plotting was in progress.
Another minor grumble is that the line¬
feed and paper change buttons are too
close together.

overpriced. However, it does open up new
areas of interest to Oric owners.

The biggest disappointment is that the
Oric's alternative character set (the
graphics) is not available on the printer.
All you have is upper and lower case and
numbers.

MhI MCP-40 pnnier/ptotter Mm £ 1 69 95 me

VAT Marfa* Parallel MacMaa One 1 Offer

varafew Tandy Colour Computer I
Oric dealers.

38

PCN JULY 28-AUGUST 3. 1983

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PCN PRO TEST

1

1

Barry Miles is still down among the daisywheels seeking high print quality at medium cost.

Printing Triumph

The Triumph Adler TRD 1 70S is really
a fellow-traveller with the Triumph
Adler typewriter range. The idea is to
kill two markets with one set of compo¬
nents. This printer works slowly because of
its daisywheel typewriter mechanisms but
it is cheaper than daisywheel computer
printers because its development costs
have been shared with the huge number of
typewriter users.

The question is. does such a printer
compromise too many features for the
price saving?

Setting up

The machine arrived adequately protected
in the traditional polystyrene overcoat.

It was apparent immediately that much
effort had gone into the ergonomics of the
design. The white and chocolate two-tone
case was pleasing to look at, and smaller
than usual. The supporting panel behind
the platten was decorated with 10, 12 and
IS pitch scales, to assist in measuring.

The transparent lid which covered the
platten and print mechanism rested on a
foam base, which was about IA inch wide,
and inlaid into the surface. I noted no less
than four guides to hold the paper firmly
onto the platten. and three rubber rollers
for the same purpose.

Lifting the hinged body of the machine ( I
understand that future models will cut off
the power when this is done), I spotted that
the dip switches were tucked away out of
the reach of all but the serious adjusters of
the machine, in a slot in the front panel.
They were however, readily accessible to
the determinedly-handled small screw¬
driver. Most of them do nothing at all. but
the important one. switching automatic
linefeed on and off, did. You can also set

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certain standard form lengths, and choose
language variants.

The front panel contained some very
smart touch sensitive switches. These
control pressure of impression, on a scale
of one to three, according to the thicknes¬
ses of paper being accommodated, on or
off-line. This is important, because the
printer powers up off-line, which is
unexpected, and likely to cause a bit of
frustration until you notice it . To set the top
of form, move to top of form, or make a line
feed, you press the switch for a long or a
short time.

A self test takes place if you press both
the switch for setting top of form and the
impnssi it switch at the same time. The
complete character set is then printed out.
This is worth doing twice, in order to satisfy
yourself that printing is working in both
directions.

The TRD 170S is rated at 16 characters
per second at about one line, and 12
characters per second printing average
Shannon 2 text. These are uninspiring
figures, but there are extra factors to be
considered. A wide range of daisywheels
are available, in various pitches and styles,
and a bonus from the slow speed is that the
character scan is thin and elegant.

Ribbons are large snap-on cartridges in
fabric, carbon, or multistrike carbon. The
ribbon carrier has a lever to set the amount
of ribbon transport to suit the pitch of the
wheel you are using, which is good for
economy.

Up and running

This is undoubtedly one of the most
pleasant printers to use. The designers
have thought the design through to its
logical conclusion, and the results are

pleasing. What I think they have done is
to examine the nature of the work most
frequently carried out on a daisywheel
printer, and decided that it is short letters
where quality matters more than speed,
and easy paper alignment matters. If the
printing comes out askew, a reprint is
always necessary. The concept is that the
total time from picking up the paper to
removing the completed document is
important. The loading of the paper is
easy. Simply pull a lever towards you to
release the bail bar, insert the paper behind
the platten. then bring the lever further
forward against the spring's resistance and
the paper will automatically feed around
the roller.

The fan is very quiet, and the printer
makes very little noise indeed, rather like
having a typist in the room with you.

The control codes offered by this printer
are somewhat sparse, but arguably all that
most people need. Backspace and under¬
line allow you to overstrike, and produce
perfectly underlined material. You can set
a left margin of your choice from character
position 1 to 256. It is possible to carry out
linefeeds forwards and backwards, reset
the form length, to set Bold and Shadow
printing, and also Proportional Spacing
from within software. Escape sequences
will also print the six additional characters
on the wheel. The speed of the machine
was slightly understated .

Verdict

The total design concept seems absolutely
right on this machine, the only problem is
speed, and the tendency for the first double
struck character to print slightly off to the
right, so it looks like shadow printing,
otherwise it is extremely attractive.

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PCN PRO-TEST 1

I With a glance at past and future, Richard King mentally constructs a new breed of micro.

Midsummer’s
dream machine

.‘c-

PCN JULY 28-AUGUST 3, IMH3

PCN PRO-TEST1

A question
of intent

There comes a time in the life of anyone
who spends a lot of time looking at
different examples of similar objects when
the sheer number of the items under
examination means they all begin to look
the same.

The more so when the articles arc
computers. When micros were first intro¬
duced. they were all radically different.
Each had unique features, and almost
every one had some feature which made it
outstanding.

But look around today — practically
every one is cloned from one of three
stereotypes. There’s the Spectrum-type,
the Apple-type, and the Box.

A major aspect to their conformity is
that the Box types and many of the
Apple-types will generally only work in
one of two ways . . . CP/M or not, though
to all appearances, they’re identical.

There are undoubted benefits to be
gained from standardisation, which
needn’t be restated here, but a question
also arises. Namely 'Are the concepts
which underlie these standards the correct
ones?’

The problem lies in the fact that the way
‘ordinary’ computers are programmed
necessarily divorces the operations re¬
quired from the data which will be
operated upon.

If the methods used are reversed, and
the data is considered the important
member of the partnership, with the
program only being present in order to
make a specific change, we get an
altogether different outlook.

Most obviously , program mi ng a nd prog¬
rams lose a lot of mystique . and make most
of the latter outmoded. At the same time,
the analyst or information specialist be¬
comes more valuable, as do the files.

Since analysing and judging is precisely
what people do very well, the final result
should be a much more approachable
machine which works much the way people
do, albeit faster. It would be more literal,
rather less discriminating and possibly
more fallible. But it would also be a little
more accurate, and most important would
be easier to control.

This is because ‘nailing jelly’ is extreme¬
ly difficult , if not impossible. It's rather like
pelmanism — you have to remember a lot,
and while people are pretty good at
remembering impressions, they aren’t so
hot when it comes to detail.

Since it is difficult to do at all . much less
well, wouldn't it make sense for the
computer to do the bits that it’s good at.
instead of working like a fancy typewriter?

Hence the ’alternative micro’, which I
have called the X- 1 — a computer designed
to work so that its operation accurately
reflects the job it is supposed to do. It is
described in detail here, specs and all.
though, of course, it's an imaginary
machine.

The main purpose of a computer isoften
confused with its operation. What it’s
actually meant to do is to change data
from one state to another, by a process
which is generally called a program.

The program is rightly considered a very
important part of any computer-aided
work, but this recognition has had the
result that the data, which is the raison
d’etre for any program, has been ignored.

The result is that programs are generally
written with little or no regard for the data
they will need. At best, variables common
to one sub-problem are given related
names, but related types or usages are
generally ignored.

The X-l is a machine designed with the
approach that the only non-arbitrary factor
is the data, and that any program is only
another form of data, which in this case can
be interpreted as a set of changes to data.
The general idea is that if the principal
object in the user’s view is the data itself,
and operations on it are shown as physical
changes in the data, then a more under¬
standable (and hopefully more useable)
machine will result.

It doesn't depend on new technology,
but on reorganisation of current technolo¬
gy. accompanied by re-packaging and
re-programming.

Construction

The physical construction of the X-l
doesn't need to alter to conform to the
philosophical principles stated, but since
most machines are difficult to work on, it’s
worth looking at.

X- 1 is designed on the Bauhaus principle
that form should follow function. The
casing is made of glass-filled plastic resin,
and is about Min long, bin high, and Sin
deep. Ventilation-slots are covered by
perforated protective grilles mounted
flush with the top and bottom, and the
comers are slightly chamfered. Almost all
the surfaces have some details worth
examining.

All essential controls are accessible from
outside, but mounted internally, so that
only four long Allen screws, located at each
corner, have to be turned to free the deep
but essentially rectangular box of the top
half of the shell of the main unit, leaving a
shallow tray at the bottom.

Removing the top reveals the two main
circuit-boards, mounted on edge to allow
convective cooling. The front board has a
special supporting brace to prevent dam¬
age when an expansion-module is plugged
in.

The centre board carries a compact but
complete 16-bit microcomputer, with
plenty of RAM. a basic video-screen,
disk-controllers and various ports. Behind
is an extra slot, into which an expansion
memory-board may be plugged.

The lower tray carries the weight of all
items, and has a PCB mounted horizontal¬
ly. This is used to carry the various
inter-unit connections, as well as all the
power-lines.

The underside has a series of shallow
depressions, each almost but not quite

bridged by a flat tongue, so that cables
which may come from expansion modules
can be led cleanly out to the back.
Wrapping a cable around one of these
tongues provides an adequate degree of
strain-relief.

At each comer of the base is a large
rubber foot, and a hole which marries with
a toothed peg, so that the machine won’t
fall off its wall-bracket, if that's how it's
mounted. The front appears to have a
series of fine rectangular lines engraved on
it. These are, in fact, spring-loaded doors.
Pushing one causes it to swing in , revealing
a 96-way DIN-connector.

The top surface has a row of large round
buttons above these, running along the
front edge. If you press one with the
associated door held open you can see a
pair of plastic bars move forward a short
way. This is an ejector-mechanism, so the
modules which plug into the connectors
can be removed without damage.

Another important function is per¬
formed by the ejector-buttons, which have
two distinct depression-pressures. The
lighter one gives a signal to the base-
processor. and the other actually shoves
the module out of the connector. When a
particular module gives the signal that it is
being closed down (its button is being held
down), the base-processor quickly informs
any processes which may be. using' that
module. This may involve terminating the
process, initiating another module to the
same task if one is free . or any other action
which the user may have suggested as an
appropriate course of action.

This slightly complicated procedure is
necessary because the X-l is meant to
remain on all the time, even while
field-repairs are being carried out. which
may involve removing or replacing a
module.

It has other advantages, too. since if the
base-processor is faulty, a diagnostic
module may be plugged in without shutting
down. This can then take over control by
forcing a priority bus-request . and can look
at the base-processor as a module itself
(which it is, in fact). The advantage lies in
having the memory of the base-processor
freely accessible, probably containing
clues as to what happened when the fault
occurred, and so permitting some chance
of recovering the data.

The other side of the machine has a
‘hood’ which lifts up. Underneath are a
series of different sockets, three parallel,
three serial, several kinds of TV/monitor,
tape and audio sockets. Each has an
associated switch.

In the case of the serial and parallel
ports, these are DIL microswitches, and
multi-way miniature rotaries for the
others. With them, preset configurations
can be selected, but this is a convenience
only, since many settings (in particular the
parallel and serial ports) can be changed by
software.

The ports are sufficient to allow reason¬
able access to the base-processor, and
limited access to other modules, providing
1/0 for the keyboard, printer, (serial and
parallel), plotter, modem, and terminal, as 44 ►

PCN JULY 28-AUGUST 3. 1983

PCN PRO TEST

well as colour monitor (both RGB and
composite) and modulated TV on Channel

The cables are led out through the slot
underneath the hood, which clicks into
position . and can also be shut securely with
a pair of sliding bolts. The hood itself is
sufficiently thick to be as stiff as any other
part of the case, protecting the delicate
items under it. and allowing strain-relief
clamps to be fitted to the cables.

The rear half of the top surface shows the
front of a 3in micro- Winchester drive at the
left end. with the opening of a 3.5in
micro-floppy beside it. so the actual disk is
popped out like a piece of toast.

Filling the rear right-hand third of the
main unit is the power-supply. Since the
X-l is intended to remain on most of the
time, this is not just a simple PSU with an
on/off switch — there are special arrange¬
ments. On the top isa green indicator-LED
to show that it’s switched on . and a red one
which is usually off.

On either end are deep depressions
which serve as handgrips. Underneath
each is a hatch with a small handle. Under
the left-hand one are some buttons and a
small LCD screen. 20 x 4 characters, as
well as several LEDs.

The buttons perform fundamental
checking procedures when pressed, and
the result is reported on the screen. As a
check, one of the LEDs lights for each
major function . Using three-colour LEDs,
the statuscan be shown — green for OK but
not in use. yellow for OK and in. use. and
red for failed.

Under the right-hand end hatch is the
power-switch. There arc. in effect, two
power-switches. One is an ordinary rock-
er-type. but beside it is a small Yale-type
lock. The power will be locked on if this is
turned to the on position while the rocker is
on: if the rocker isn’t on. the Yale can’t be
turned. This eliminates any possibility of
the machine being started incorrectly.
Reversing the procedure will power-down
the machine.

HARDWARE

In order to make sure that all these
precautions are not rendered useless by a
passing fopt kicking out the power-cable,
this is bolted into a socket with a large
central screw running through the middle
of the plug. Naturally, since the plug at the
other end has to be some standard type,
similar security is not automatically avail¬
able. but it would be well worth installing
something like this in the wall.

In fact, even if an accident does happen,
it isn’t fatal. When the power drops below a
certain level the red LED lights, and at the
same time a pleasant — but nonetheless
highly noticeable — beep sounds for ten
seconds.

This actually means that the emergency-
batteries have been called on. When
they're in use. the machine gives a
disconsolate little sequence of three bleeps
every minute . The batteries themselves are
a set of high-current NiCads. charged from
the mains and capable of supplying power
to the machine for 30 minutes . . . enough
to give the user time to tidy up the current
job and close down.

If the user doesn’t manage to complete
this in time, the machine docs its best to
keep everything safe, so when the batteries
have been used for 75% of their endurance
it goes into the •emergency shut-down’
procedure. This involves copying the
whole contents of the memory onto a
special area of the Winnie, effectively
saving the status, which then allows a safe
(if not elegant) shutdown.

This also means that the user can’t cause
any major damage . even if he turns off the
machine correctly, but without having
ordered the termination of all subsidiary
processes, thus taking the machine to
Level 0 and closing all the files properly.

Recovering from such an event is fairly
simple. When the power is restored anil
after the machine has gone through the
booting process, it looks to see if the
system-directory is marked as having a
valid emergency-file. If so, a panic power¬
down must have occurred. The user is told

about this, and asked if he wishes to
attempt a return to the pre-emergency
situation.

Answering yes will load the memory-
image . and — we hope — the machine will
then be in the same position as it was in
when the panic happened. Of course, this
isn’t exactly the same . because the machine
has been off in the meantime, so the
memory-image, and all its associated
processes, are now running at Level Start
+ 1 . ie as a "supervised process’ . This means
much what it says . . . that the process now
running is not the base-process, but is being
observed by another process. I’ll explain
the effect of this later.

Storage

Storage on a machine like the X- 1 will get
used up pretty fast, so there’s plenty of
it . . either l()Mb or 100Mb with vertical

recording on the Winchester, and 500K on
the micro-floppy, which would rise to 5Mb
with vertical recording.

Both operate with cache-memory if this
is possible and sufficient memory is not in
use. and the proportion assigned to
cache-usage can be allocated by the user at
supervisor-level.

Expansion

As explained in the section on construc¬
tion. the X-l can take a range of
expansion-modules. Modules come in two
different flavours . . . intelligent or
damned smart. An intelligent module is
one which has some limited programmabil¬
ity. or a program in ROM which is
executable by some processor. The other
kind actually hasaprocesorof its own on it.
and can thus function independently of the
rest of the system, barring the need for
power.

Provided the task accomplished by the
module doesn't take up too much time and
doesn't have to be done too often, an
intelligent module can be used. Tasks

Tli* rear hatch covers the main Input Output connectors arranged in Mochs. Parallel are at one end. serial in the centre, and the miscellaneous ones.

PCN JULY 2S-AUGUST 3. 19R3

THEBUG STOPS HERE!

ARC AM ACTION!

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FOR THE

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rhis adventure game with Arcade Action features single key
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◄44 which would take up too much of the
base-processor's time can be handled by
on-module micro-proceSsors, which would
do as much as was practical.

Intermediate results would be processed
independently, cither in the module itself,
or by another module, which in this case
would probably be a pure processor,
operating in parallel on another bus. In
either case . the last processor in line would
then transfer the final result to the
base-machine, which would store it on the
disk.

Operation

The rationale for the X-l is its operation,
and this is where the philosophy is most
clearly exemplified. In essence the X-l is a
kind of hyperthyroid 'state-machine'. It
only exists to change from one state to
another, the doing of which will produce
some kind of result.

When a state involves a device which is
comprehensible by the user (such as a
screen or printer), output is obtained, and
if the previous changes involve a state
which is interpretable by the user, then
useful output is produced.

Notice that at no stage was any assump¬
tion made as to what is. and what is not.
correct. This is avoided so data may be
handled in any way which may seem
appropriate to the user . The X- 1 isn't going
to presume to tell him that what he's doing
doesn’t make sense. But that doesn't mean
that it can't try to guide him, tell him what
he’s got and how he got it. let him undo it.
returning to a prior state, and generally
assist.

The principal operation for the X-l can
be stated as Record any changes that have
occurred’. If that were carried to its logical
conclusion it would mean recording every
data-movement, no matter how small. But
no matter how m uch storage was available .
it would be full in seconds, even with a
small, slow machine.

Fortunately, there’s a method of doing
what amounts to exactly the same thing,
and doing it in a practical fashion, meaning
in a reasonable space. Since the only
changes that matter are the ones which
actually ‘hit the outside’ so to speak, all we
have to do is to record them. We can afford
to forget the actual ones which produced
the second state from the first. Obviously,
this will consume much less space.

The basic idea is as follows: The only
thing which must be known in order to
process some data is the ‘shape' of the data
before processing, and the shape after¬
wards. Further, the operations needed to
make the desired change only form
another set of data!

In practical application, this means that
provided the machine is given a picture of
the data which bears a reasonable rela¬
tionship to the situation, then there is no
possibility of an incorrect program.

That’s a pretty tall claim to make, so I’ll
add the caveat that this also means that all
output, no matter how useless, is correct,
since it is no more than a set of data,
processed exactly as instructed. The user

PCN PRO TEST

HARDWARE

alone is responsible for deciding whether
that output means anything.

If this sounds like a very circular
argument, let me explain that the X-l is
provided with tools which will (hopefully)
reduce the need for the user to try
interpreting his. perfectly correct output,
by eliminating the chance that he will give
an incorrect set of instructions, and so
won’t produce any garbage.

This is accomplished by means of a kind
of ‘super-interpreter’, like Occam. Any
changes which are made to the current
state are immediately shown, the effect is
shown . and the command which caused the
change is recorded, as well as the former
state of the effected item.

Since the result is immediately apparent .
there is less chance of progressing far down
a wrong path, and even if this happens it
isn’t much problem, since each change can
be undone in order, allowing the user to
backstep. When the data has been success¬
fully changed to the desired state, the
entire sequence of necessary operations
has been performed and recorded. A
process has been ‘nailed down'.

To reactivate the process, it is only
necessary to order the computer to use that
data-set as a set of instructions. Of course,
since the instructions are only data as far as
the machine is concerned, they too can be
operated on as data!

‘So how would you actually make a
change to the new data. Or come to that,
how would you input new data-shapes?

The odd thing is that it doesn't matter!
You could use a keyboard with some kind
of interpreter, a light-pen and the

keyboard combined, or even (if we’re
being really trendy) a mouse. In extreme
cases you could even use voice-input,
remote-control over the phone, or any
other method which seemed appropriate.

The point is that the actual details, just
like for output, are implied by the change
required and the device in use. The
machine can take care of the trivialities.

Since the only data we are really
interested in is either input or output, and
so long as the internal records can be
suitably converted before becoming out¬
put , the only thing you would have to do is
to describe the data to the machine using
whatever device is currently active.

This is what regular programming is all
about. But as we know, it doesn’t work
very well, so on the X-l the data — or at
least a representation of it — is always in
view in the form of a screen display.

Producing a display is not just a simple
matter of writing stuff on the screen, but a
complex task, a lot of which is concerned
with making suitable changes, as well as
making suitable adjustments so that the
layout is aesthetically pleasing. The
changes to the data have to be made so that
it’ll mean something to the viewer, and the
adjustments so that it can be read. It
doesn't take long to realise that much of
this will be common to any device, so it
would make sense to have just one copy of
the routines.

Whenever a routine is needed, it can be
activated, used and restored to its former
state without interfering with any other
process which may be using it. If each
common detail is reduced to a single

PCN JULY 28-AUGUST 3. 1983

47

*447

IPCN PRO TEST

HMiimHF

occurrence, then it will be impossible to
create a data-conflict . . . something can’t
conflict with itself!

On the X-l. the user doesn't have to
bother with details of device-handling.
This is because the operations required are
implied, if not explicitly stated, by the data
concerning that state.

If a graph has been shown on the screen,
and later a hard copy is wanted, then the
user shouldn't have to do anything to the
data itself, since the output is only a
representation of that data. All he should
have to do at most is to invoke the process
again, but specify the plotter as the output
device, rather than the screen.

Any set of data can be grouped, and
whether it is interpreted as a collection of
text-records in a file, as a picture or as a
program, is left entirely up to the user. He
specifies what is to be done with the data,
not the machine, so if it seems useful to
view a lot of five byte floating-point
numbers as Os and Is. then there's nothing
to stop it being requested.

All you need is a reason for doing
something, and as soon as you have that,
everything, no matter how stupid-looking,
becomes perfectly sensible.

How the X-l appears will depend partly
on how much it's been used. This is because
the user alters the default screen-format as
he goes along . . . and here’s another clue
to the internal operation. When the
machine is turned on. a data-set is loaded
from disk. This is a collection of lists,
containing the last set values for all kinds of
operating-details, but if an emergency
shut-down occurred . then an addition copy
is loaded.

Naturally, this image is the same size as
the memory, so it won't fit with the base
data-set in there as well . not to mention the
processing instructions, no matter how
they are held. To overcome this, the
memory image is analysed, and all
irrelevant state-images are discarded.
Such images would include any processes
which had to have been completed before a
fixed time, those which could no longer be
performed because the relevant data-sets
were no longer available or for which a
specific piece of hardware was needed, but
has been removed, and so on.

Whatever is left is then scanned to
remove any data which is duplicated in the
base set (i> the same data, with the same
function). The remainder is now small
enough to fit. and can be used as a
subordinate data-set. supervised by the
operations contained in the base data-set.

The process can now be continued,
deactivated as the user orders, and as each
one terminates, less and less remnants of
the problem state remain.

Of course, all this assumes that the user
has provided some kind of data to work on.
But when it’s first turned on (very first
time, or after a complete erasure of the
disks) there isn’t any.

In order to get round this, a default
data-set is provided which (if it's available)
is loaded from the micro-floppy on bootup.
This contains default-values for all operat¬
ing parameters, data-sets which can be

interpreted by the screen-handler as
forms, the same for the printer and other
devices, and data-sets which can be used as
instructions, thus providing utility com¬
mands.

In use this data-set is modified by the
user, mostly by interpolation and compari¬
son. which allows the machine to modify
the data-set so that the user makes levs
requests to change the format.

What happens is that whenever the user
modifies a piece of data in certain
data-sets, the machine makesanotc of this.
Next time a change is made to that same
parameter a new entry is made in the list.
Eventually the list will fill up. and when it
does, the machine looks to see if there is
any common feature. If so. it isfairly safe to
assume that this is some kind of habit of the
user. Thus, it would make sense to set that
parameter to this value, or at least to ask if
it might be a good idea.

Of course, this also means that the user
has to keep insisting before a new value
becomes fixed, so a short-cut is available
which allows any value to be reset
immediately.

The most frequently used method lies
somewhere in between these two. On
many occasions it isn't convenient to force
a change at base-level, and it isn't
acceptable to take the default, so a process

is permitted to make a temporary change to
that parameter. The effect isthat whenever
that process is active, and has control of the
service to which the parameter applies,
then the 'local' copy is used.

This is actually accomplished by invok¬
ing a base-level process as though it were a
subprocess of the active process. The
reasoning is that if a process (albeit
inactive) is present in memory, then it
doesn't make sense todone it . Far better to
save its status, invoke it afresh, use it. and
restore the previous status afterwards.

What are we going to do with it switched
on all the time, then? Play around with
the known data, for example, or look in
sensible places for more. It could be useful
to scan the various public-access data¬
bases. collecting any pages which have
references to ‘interesting subjects' (de¬
fined as a list by the user), or alternatively,
look through the known data to see if there
are any common features in files which
have been defined as unrelated.

It isn't terribly important to make any
fixed decisions about what should take
place because, again, this is entirely up to
the user ... no need to say that printer¬
spooling is an activity which can be done in
the background, or in slack moments . . .
anything can be done at anytime, for any
reason.

The other wh hatch reveals various self -checking controls with three-colour LEDs to show the status ot

MC'6800(or possibly a 16032) running at 12.5 MHz
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3in micro- Winchester. 3. 5in Sony micro-drive
8K(2K self-check . 2K bootstrap. 4K monitor )

1 28K minimum . expandable in 64K blocks to 1 M K
3 programmable Parallel . 3 programmable Serial
16slots. each carrying a switched . isolatable copy of the main bus
None needed

£2 .000 (minimum) — you don't expect all this for pennies, do you?

PC'S JULY 28-AUGUST 3. 19H3

YOUR SEARCH FOR COMPUTER
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With the latest creation from
New Generation

An action game that needs nerve and
quick reactions! Hurtling through a void,
your task is to travel as long as possible,
scoring points along the way. Be careful
though as you will have to avoid your own
trail and those of up to four chasers. As
trails are left you will have to thread your
way through, but don't forget the more trails
the less space for manoeuvring. You will be
terminated when you finally get caught in
'the Knot'.

For 48K Spectrum and compatible with
Kempston, AGF and Mikrogen joysticks.

'It is the most astounding thing you'll
see for a long time' - Popular Computing
Weekly. kM/,

Hir

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SOFTWARE WRITERS ■ Lump turn or royalty paymant* Sand tap** and datall*
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ZX81 COMPANION
PRICE SLASHED!

THE

ZX81

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This standard manual for serious ZX81 users
contains sections on:

GRAPHICS & REALTIME TECHNIQUES
INFORMATION PROCESSING
EDUCATION

THE ZX81 MONITOR (bid disassembly)

and was described by 'Your Computer' as
"far and away the best" ZX81 book.

Send cheques for £2.50 to:

L1NSAC

PCN JULY 28- AUGUST 3.19*3

What’s your game? Find out in PCN' s weekly freeze-frame of the action.

DUNGEON ADVENTURES

DRAGON 32

Tombs of
treasure

Nmm Franklin's Tomb System
Dragon 32 Pabhihir Salamander
Software Fermat C assette Law nm»
Basic Outlets Mail Order from
Salamander Software and dealers.

What's a nice guy like me doing
in a game list this? All the blurb
in Franklin's Tomb. Salaman¬
der's latest jaunt for the Dra¬
gon. suggests it's about private
dicks, seedy bars, damp
cigarettes and invariably sticky
lamposts.

But the game rapidly de¬
scends into yer-run-of-the-
dungeon adventure. Franklin's
tomb is the First of a series so bits
of it will provide clues for future
releases ... all good clean fun.

Objectives

The objective is simply to ‘solve
the riddle’. Despite a 20-page
(one reasonable bilge and thir¬
teen of seedy illustrations)
booklet . it's not clear what your
aim is. Oh well, visit every¬
where and collect anything
that's not nailed down. It’s a
shame there is no scoring
system.

In play

For an adventure written in
Basic. Franklin's tomb does
very well. Response times are
not so slow as to be unbearable.
You get a 'window' display with
where you are. possible exits
and your ill gotton gains always
on display ... it saves every¬
body a little hassle.

Apart from an opening
theme that reminds me of a
certain brightly coloured cat.
the only attempt at sound and
graphics is a beep when each
command has been dealt with.
Conversation is limited to the
usual two-word commands
such as REAL BOOK. OPEN
DOOR and PLAYGAME.

There’s the welcome and
much needed ability to SAVE a
game in mid play. But it could
do with a few rough edges
clearing up. There's no cursor.
It won’t take D for down.

Other than that, there are no
surprises. Well . . . none that
wouldn't spoil the game if I told
you. Franklin's tomb isn't as
difficult as some . The caves feel
crammed rather than desolate.
Books with messages in them,
statues hiding keys and so on
won't be beyond most players.
You're also helped because the
caves are essentially unpopu¬
lated.

Verdict

Franklin’s Tomb is a competent
little game. It is going to appeal
more to first timers than the
hardened cave crawler . . .
though the threat of a con¬
tinuing series is very attractive.
Still, ‘when you’ve been in this
business as long as I have,
sugar, one dungeon looks pret¬
ty much the same as the
next. . Max Phillips

RATING
Lasting appeal
Playability
Use of machine
Overall value

SPECTRUM

Haunted

rescue

r House of Horror
1 48K Spectrum Price £7
’ Lasersound. Stratford
Workshops. Burford Rd. London

EI5 Fermat C assette language
Bask and machine code Other
vonteno None Outlets Mail order

Hot off the presses we have
Hummer House of Horror — a
part, we are told, of a 'sensa¬
tional collection of mind warp¬
ing games' from Captain Laser-
sound. It’s an adventure game
set in a haunted house . and your
objective is to race against the
clock to rescue . . . well a
maiden, of course.

Getting the thing loaded in
the first place was something of
an adventure. Enter LOAD’"',
say the instructions, and 'the
process is entirely automatic
from there on.’ This will puzzle
many an unfortunate novice, as
the automatic process involves
you stopping the tape half way
through to collect your instruc¬
tions.

Objectives

Once you've actually got it
loaded, experienced the leng¬
thy and rather nifty commercial
for Lasersound — the best
graphic in the game — and
cooled your heels while the
computer tells you ‘Please
wait’, you can then start your
quest.

You are in one of a series of
rooms — round about 60 on
four floors. In these rooms
you’ll encounter objects and
creatures which arc alleged to
help you in your search.

In play

But hold on there, you may say

— the cassette wrapping says
'superb 3D graphics'. What you
actually see before you is a
line-drawing representation of
a room in 3D. a label at the top
telling you who else is there —
the Wild Woman, the Witch
etc. and if you're lucky, a small
graphic representing an object.
You don’t see the creatures,
and the objects are so small
they’re easily missed.

You move around by the
usual method, although picking
up objects is tiresome, as you
must . for example . specify 'Get
Fido’s din dins’ — I kid you not

— down to the last apostrophe.

The next problem is that 'for

the unwary arc traps'. This
actually means for the unlucky
arc traps. There are various
occasions when you blunder
into something and get trapped/
killed . but as these seem to be at
random rather than at fixed
locations, it’s impossible to
learn from your mistakes.

Verdict

The problem with this game is
that it’s very difficult to proceed
in the way you normally do in an
adventure. It isn’t an ongoing
learning process, as you're
generally knocked out of it by
random hazards rather than
avoidable ones.

Theoretically I suppose it
could be cracked . but it 's more a
question of probability than
skill, and I gave up after several
fruitless and not very entertain¬
ing hours. John Lettice

RATING
Lasting appeal
Playability
Use of machine
Value for money

PCN JULY 28-AUGUST3. 1983

LEAPS & BOUNDS

COMMODORE 64

Jumps for
Jupiter

Commodore 64 Mm £27.50
PmMMmt Epyx Fermat Disk
Lmcmb* Machine Code Other
reraleee None Outlets Maplin

Electronic Supplies Ltd. PO
Box 3. Rayleigh, Essex SS6
SLR. Tel: 0702 554155

This latest arcade game, sup¬
plied on disk for the Commod¬
ore 64, owes a little to Donkey
Kong, the game that has you
leaping over barrels and climb¬
ing girders to rescue the maiden
in distress.

Objectives

Your joystick controls a little
man, whose job is to climb to
the top of all thirty one levels of
play, and thus save Jupiter
Headquarters from destruc¬
tion.

On your way you have to
climb up and down ropes,
ladders, girders, take flying
leaps into space, and avoid a
hail of missiles, dragons, gun-
fighters and many other
hazards, while still managing to
pick up treasures.

First impressions

The initial screen gives you a 5
option ‘menu’ before play can
commence.

You can start the game at a
beginners, intermediate or an
advanced level. progress
through all the levels in seque¬
nce, or take a random option
and just be swept along, never

knowing which level you’re
going to encounter next.

Up to four players can join in
the fun. and each individual
level also has a choice of eight
playing speeds, ranging from
slow to suicidal

Ihe helpful manual suplied,
as well as telling you how to play
the game , contains a number of
valuable hints for achieving
vast scores.

In play

Making wonderful use of
graphics and sound, the game
requires much more than just
quick reactions. As you start
being chased by robots, or
collecting treasures that render
you invisible, you also have tc
be able to think, and solve the
problems presented to you
logically as well as quickly.

Perhaps two girders don’t
quite join up, the ladder snaps
in two after you’ve climbed it,
treasures hang in mid-air
seemingly beyond reach, or any
one of a hundred other prob¬
lems face you as you go through
the levels.

All of them can be solved, but
it will take some time, and your
seven lives seems a meagre
allowance.

Verdict

The best arcade game I've seen
for the Commodore 64, and one
that will have you playing well
into the early hours of the
morning. Fast and frustrating
it is simply brilliant!

Puts Garrard

RATING
Lasting appeal
Use of machine

SPECTRUM

Sizzling
power line

Nhm Jumping Jack Mas
16K Spectrum Met £5.50
PaMUhar Imagine software 051
236 0407 Fanaat CasseLc
LangMga Machine code (Mats
Sinclair dealers

Remember learning kerb drill
or even the Green Cross Code?

When you stood at the edge of
the pavement looking right
. . . and left . . . and right
again and if all was dear, then
cross keeping a constant watch.

With Jumping Jack, you can
relive those dear dead days,
only instead of charging across
the street, you have to leap up a
set of red lines which not only
won't stand still, but are also
infested with ghosts and dino¬
saurs and all those everyday
hazards.

Objectives

In six lives, you have to get to
the top of a set of eight moving
red lines by jumping up through
the gaps that appear randomly,
and running to avoid falling
through gaps that appear in the
line you are standing on. And
when you’ve got to the top of
one set of lines, you get another
set, but this time complete with
a menace which will knock you
flying. The more screens you
complete, the more menaces
— but each time you fall back
down to basecamp, you lose
another life.

In play UmMrmcMm ««««

Imagine has come up with yet Value fWWWW

another game that has good
graphics, an original plot, and
the sort of game you just can’t
stop playing.

Jack, the hero, is a Hungry
Horace-like pair of eyes on
legs, looking left and right as
you wait for a suitable gap to
appear in the line above you.
And as soon as the line he's
standing on is threatened with
an approaching gap, and you
get him running left or right . his
dinky little legs go nineteen to
the half dozen.

If you try to jump through a
suitable looking gap too soon or
late. Jack apparently gets elec¬
trocuted — are these red lines
power lines? — and lies on his
back waving his legs in the air.
While he’s incapacitated, and
looking uncannily like a heli¬
copter, holes creep up beneath
him, so it's quite easy to end
jp at square one.

The lines can also hunt in two
directions, so as fast as Jack
tries to run one way, he’s still in
danger of being confronted
with another hole headed
straignt for him. A dirty trick.

Complete a screenful, and
you get a line of— well, poetry?
It’s a limerick that starts out ‘A
daring explorer named
Jack . . .' and presumably gets
even worse.

Verdict

Stirring stuff, simple but very
addictive. You get enough lives
to make a fair impression on the
game even on startup. As there
are only three keys to bother
with, left, right and up, you
won’t get your digits in a twist.

SMrtey Fawcett

RATINGS

32

PCN JULY 2*- AUGUST 3. 1W3

t SECTOR 7 SOFTWARE

GAMESPACK

FOR THE ORIC 48K

7 GAMES PROGRAMS ON ONE CASSETTE FOR £7

LASER-STATION — A planetary space duel

On i loner red mrang ftm cNNnd youf IM* mitmuor' from i Oncmaig »W|r u<»

OBSTRUCTION - Territory, trap* and skill -

Sim row Mot* around ftt loan raanding mo movomomj al One I
dead and trap u-mout t**n) nuo a am yountfl

M A2A TRONIC - A 3- Dimensional Maze Exploration

- - aonalmait Mw* mrougMlu

a your «•» to mo tail * tatonoong gano

MILLIBLOX — A Points- Scoring Chase through 7 sectors

So*on nclon to nplort as Buo rnmioe* mdM^llii^Wo^m'WCa^rou MwJQMl

NOUGHTS AND CROSSES — The Traditional Game

Throo s W mall lo pram* won mo roungost gomosMf «*h a swtaM opponom

MATHS-TEST — Combines Maths and Fun

is on oat CASirm ion rum «nm

Send cnogu. or TO lor f 7 ID

SECTOR 7 SOFTWARE

PO BOX S NEWTON ABBOT. DEVON

PURCHASE LEDGER

AVAILABLE NOW

forZXBI 16K
Spectrum 48 K
Dragon

Commodore 64
handles up to 100

accounts, invoices, payments, VAT handling and
analysis. Selectable print options.

SALES LEDGER . . . spec, as Purchase Ledger.

COMBINED DATABASE . . . fully definable, vast
spreadsheet storage, rapid calculations. Terrific
value.

MICROLYMPICS 1 . . . each containing 10 action
MICROLYMPICS 2 . . . games. Selection of stan¬
dards (Pac-Man, etc ), plus new amazing
games.

ALL TAPES COME WITH FREE BACK-UP TAPE
IN PRESENTATION BOX

SINCLAIR SPECTRUM
ZX81 . 16K 48K

C9 95

COM 64 DRAGON
£12 95

Please rush me .

TOTAL SUM INCLUDED: £
Please make cheques and PO
payable to

ANIK MICROSYSTEMS.

30 KINGSCROFT COURT
BELLINGE. NORTHAMPTON

Everything for the Acorn and BBC microcomputer user.

ACORN USER EXHIBITION

Cunard International Hotel 25-28 August 1983

Hammersmith,

The Acorn User Exhibition at the
Cunard, Hammersmith will house the
largest display of Acorn products ever
'assembled under one roof. It will be four
days of non-stop entertainment and
^ lucation for parents and children alike.

The new Electron, the second
processors for the BBC micro, the BBC
Buggy, all the new software and hardware
will be on show. There’ll be competitions,
prizes, Acorn experts to answer your
technical questions, demonstrations and
lots and lots of bargains.

If you are an Acorn owner, or just
thinking about being one, you can't afford
to miss it.

Opening hours: August 25th-27th,
10am-7pm: August 28th, 10am-4pm.

ADVAT^FBTOKTNGCOUPbN'

Admission charges: Adults £2 per
ticket, Children £1 per ticket.

We have arranged for nearly every
exhibitor to redeem the cost of your ticket
when you buy something from their stand.

Group rates: 10% discount for parties
of 10 or more.

Busps: Frequent services from central
London.

Tubes: Hammersmith Broadway -
Metropolitan, District and Piccadilly lines.

Car Parking: Several car parks in the
immediate area.

For details of exhibition stands and
advance ticket sales contact Computer
Marketplace Ltd, 20 Orange Street,
London WC2H 7ED. Tel: 01-930 1612.

r> queue - buy your tickets in advance.

Please send _ Adult tickets at £2 - Childrens tickets at £1

enclose a cheque/postal order value £ _ payable to Computer Marketplace

GAMEPLAY

effect being reminiscent of a sky
rocket at the moment of its
starburst. Beware, the debris
can destroy your own ship.

In play

The title page is created to the
strains of an extremely impress¬
ive version of the Star Wars
theme, showing off the 64's
powerful music capabilities.
This is followed by a screen
menu of the game's options.
You can play on any of four
difficulty levels: beginner, reg¬
ular. advanced or expert.

Mountainous terrain can be
introduced, missiles can
ricochet off the screen edges,
and the top four scores (with
scorers' initials) can be display¬
ed.

The ranking system lets you
enter three initials, in large size
letters, against your score. The
options can be used in a variety
of combinations and are each
selected by pressing one of the
function keys.

One thing that neither the
cassette sleeve or the program
tells you is that you can return to
the menu after each game by
pressing the upward arrow key.

Verdict

The whole program, from title
sequence and option menu to
game and ranking system, has
all the marks of professional¬
ism. I found it a delight, as well
as great fun, to play. With more
programs like this. Rabbit Soft¬
ware might well corner the
market in Commodore 64
games software.

Bob Chappell

RATING

Lasting appeal ftftfl

Playability

Use of machine

Overall value

SHOOT ’EM DOWN

VIC 20

Alien

Waves

Name Fourth Encounter Ipatam
Vic 20 Price £25 PtMahor Thom
EMI Fenual Cartridge La«a«a
Machine axle Outlets High street
dealers

Fourth Encounter, confides the
blurb, is a space game with a
difference. You can be forgiven
if optimism once again
triumphs over experience. I too
thought this might be the one
some of us have long hoped for.
the game where you really do
befriend the aliens instead of
vapourising them. The one
where, by flashing a few lights
and playing the right jingle, you
are accepted into the galactic
equivalent of Thomas Cook's
Travel Club

Alas . . .

Presentation

There are books designed not to
be read but only to grace teak
bookshelves. Thom-EMI
seems to have copied the con¬
cept in its computer games: the
packaging here is nothing short
of gorgeous.

The cartridge, in hunky black
plastic, comes in a matching
case with a booklet of instruc¬
tions featuring a full colour
illustration. Lavish?

Unfortunately, the blurb
gives the game away. ‘Wave
after wave . . . blast your fero¬
cious foe. . . lethal laser bolts."

In play

Dedication is called for here.
Press ‘FI' to get the menu then

set skill level, choose play or
practice mode, one or two
player game then you're off.
Don't die too quickly because
you have to go through that
rigmarole every time around.

Once into the game things
improve. The graphics and
sound are excellent.

After that, what is there to
say? Everyone knows the sce¬
nario (wave after wave etc). In
keeping with the Gucci packag¬
ing these are jolly cute aliens —
the first bunch look like Chinese
lanterns, the second like Disney
cartoon jellyfish.

The big build-up, of course, is
for round four (Fourth Encoun¬
ter! ) but Thorn-EM I spoils It .ill
by letting you go straight to it in
practice mode.

But it'sallsodull. Everything
happens at a suitably fast and
furious pace, lasers zap in
deadly fashion, foes attack
ferociously, wave precedes
wave according to script.

It'simpossible to fault Fourth
Encounter (though Thorn
could zap its master of cliche in
the blurb-writing department)
and equally impossible to
praise..

Verdict

If you have teak bookshelves
standing empty against your
designer-matched fabric wall¬
paper, buy it. If not you can buy
better programs for one third of
the price.

Best of all. buy a real Space
Invaders. You can't beat an
original masterpiece.

Peter Woriock

RATING
Lasting appeal
Playability
Use of machine
Overall value

COMMODORE 64

Whirling

Wonder

Nhh Cyclone System Commodore
64. joystick Pries £5.99 PsMshsr
Rabbit Software 01-863 0833
fensst Cassette Language Machine
Code Other Versions Vic 20 Outlets
Mail order, dealers

This is one of the few arcade
games where it is a pleasure to
be defeated by the aliens!
Cyclons has some rather good
variations on the usual shoot-
em-down arcade game.

Your space ship is a revolving
sphere-like craft, the faster it
whirls, the faster it moves and
fires. Motion is smooth and
accurate. It takes a little prac¬
tice to get the hang of controll¬
ing the ship. If it meets the edge
of the screen, it bounces back.
Although it can fire in any
di rection . it will only do so in the
direction it is currently moving.

Objectives

There are only two types of
enemy. The first are small red
lightning flashes which spin
head over heel around the
screen, carelessly tossing out
missiles as they go. They tend to
blow each other up if you can
keep out of their way.

The second is a spinning
flying saucer which unerringly
heads after you. Your sole
objective is to score as many
points as possible before losing
all five lives.

When either you or the
enemy are hit, the result is
rather beautiful. A shower of
coloured lights explodes across
the screen, accompanied by a
gentle ‘woooosh’. the total

PCN JULY 28-AUGUST 3. 1983

FOR THE BBC MICRO

SOFTWARE

TINY PASCAL — Pascal-T is a 16k Eprom program capable of
compiling Source Pascal into a compact and very fast threaded-
interpretive-code Full editor and disc-support are included and the
program is supplied together with comprehensive documentation
PRICE £59.00 + V.A.T.
X CAL — An expert Computer Aided Learning package in 16k
Eprom and support disc No programming skill required to
construct learning sessions as the program is screen' driven.
Facilities include Text pages. Graphics and Histograms

PRICE £65.00 + V.A.T.

LOGO-FORTH — A 16k Eprom program introducing this very
powerful but extremely fnendly Turtle-Graphics language Users
also have full access to the Fig-Forth support nucleus. Full
documentation is included PRICE £59.00 + V.A.T.

(Special discounts available for educational establishments for all
the above software)

HARDWARE

Always in slock Printers. Disc Drives IC's etc.

FOR THE EPSON HX20

SOFTWARE — FORTH ROM including full documentation £3472
HARDWARE — Expansion Unit. Paper, Microcassettes etc.

Please phone for Quotes

Retail Mall Orders Dealer enquiries to:

HCCS ASSOCIATES
533 Durham Road. Low Fell. Gateshead.

Tyne & Wear NE9 5EY. Tel. (0632) 821924
Retail sales also at:

HCCS MICROCOMPUTERS

122 Darwen Street. Blackburn. Lancs. Tel. (0254) 672214

THE HOME COMPUTER SPECIALIST

ONE STOP SHOPPING FOR
ALL YOUR COMPUTER NEEDS

BBC

MODELB

MICRO *Wd

1 £399

fs commodore 64

£299.00

DRAGON 32

£155.00

ORIC-l

£149.95

SHARP

48K MZ-80A

£399.00

NEW SHARP CASSETTE BASED
BUSINESS SOFTWARE NOW AVAILABLE

SOFTWARE

PROGRAM POWER
BUG-BYTE

SUPERIOR SOFTWARE
A+F

SIMON HESSEL
MOLIMERX
LLAMASOFT
ACORNSOFT

PERIPHERALS

DISCS SINGLE DUAL
TORCH Z80 DISCS
CUMANA DISCS
PRINTERS
JOYSTICKS
MONITORS

B&W COLOUR
LIGHT PENS
BBC BUGGY

LARGE RANGE OF BOOKS,
DISKETTES. CASSETTES &
PRINTER PAPER ALWAYS
INSTOCK

Easy parking at all branches

TOLWORTH

230 Tolworth Rise South.
Totworth, Surbiton,

Surrey KT59NB

01-3374317

SUTTON

30 Station Road
Belmont. Sutton
Surrey SM26BS

01-6422534

EALING

1 1 4 Gunnersbury Ave
Ealing

London W54HB

01-9925855

RICKMANSWORTH

Greystone Works
The Green. Croxley Green
Rickmansworh
Herts W033AJ

(0923) 779250

MILTON KEYNES

Unit 1, Heathfield
Stacey Rushes
Milton Keynes MK126HP,
(0908)317832

NEWBURY

26 Stanley Road

Newbury

BerksRGl47PB.

(0635)30047

QUALITY

SOFTWARE

FROM

1YTEWARE

Tl 99 /4A

Crunch

700

Duel

6.50

Bobsleigh & Biorythms

450

Qimon & Robot

4.50

BBC

Ught Cycles

695

Space Caverns

695

Yatzhee

695

French Vocabulary

750

Commodore

Spook 64

795

64

Superfile

1495

AVAILABLE FROM YOUR LOCAL DEALER OR
DIRECT AT NO EXTRA CHARGE
Cheques payable to Byteware, Dept PCN,
Unit 25. Handyside Arcade. Newcastle NE1 4PZ

PCN JULY 28-AUGUST 3. 19K3

FCN ProgramCards

Stand by your keyboards all owners of
Vies. Spectrums, BBCs and Commodore
64s. There are ProgramCards for all of you
this week.

To start with, a game for the Spectrum
from Richard Jones, of Stafford. Money
Maze is a spot of harmless larceny with the
player attempting to find the money in the
maze and make a run for it, all the while
avoiding the attentions of the guard.

Still on the games front , we have a simple
but addictive game for the Commodore 64 .
Bomber , from Jamie Clyde . of Edinburgh .
is a version of one of the standard computer
games which involves you in blasting a city
to smithereens in order to get your plane
down safely.

ProgramCards also features two utility
programes this week. The first of these is
from Jason Hobbs, of East Tilbury. Essex,
and is for the Vic 20.

It is a simple filing system that will allow
you to catalogue a small collection.

Even if the application doesn’t interest
you, it might be worth entering and
running the program because Jason has

used some excellent effects in the introduc¬
tory sequence which could be transported
to your own programs.

Finally, from A Phillips, of Southport.
Merseyside, there is a character definition
utility for the BBC Micro.

As it is presented here, Definer runs on
the Model B but with the following
modifications it will run on the Model A.

Change line 70 to Mode 4; change line
350 to YELS = CHRS 17 + CHRJ 1; and

PCN Programs Editor

PCN wants you. That is. if you can
understand and explain other people's
programs, spot a bug in the heart of a
listing, have done time on a number of
micros running different dialects of Basic
and have more than a passing familiarity
with Pascal. Fourth and other popular
languages

If this sounds like you. write with CV to:
Cyndy Miles. Editor. Personal Computer
News. VNU. Evelvn House. 62 Oxford
Street. London W1A 2HG.

finally, delete line 650. The program allows
you to define characters 224 to 255 andsave
them to tape. To get them back simply use
•LOAD “CHARS".

A RUN for our money

We pay for published programs on a sliding
scale which take into account length,
complexity, originality and the program¬
ming skill demonstrated in the program. So
why not give us a RUN for our money?

As well as the cash, you recieve the
satisfaction of seeing your byline on the
ProgramCard — which will, of course, be
snipped out and filed away in the libraries
of thousands of micro enthusiasts through¬
out the country.

Send your contribution, on disk or
cassette, together with a plain paper listing
and brief summary notes to:

The Programs Editor. Personal Compu¬
ter News, VNU. 62 Oxford street, London
W1A2HG.

All disks and cassettes will be returned as
soon as possible after evaluation or
publication, at our expense.

155

156

Start of main loop
Decrement time counter

Do you suffer from
PCNitus?

Thousands do! So, specially for all
you sufferers who want to keep PCN
immaculate, easily accessible and out of
reach of grubby hands, we've designed
this attractive PCN binder.

It's red, yellow and silver and will
hold four month’s copies.

No more grappling in the back
of cupboards; no more bent and
creased pages!

Your copies lie completely flat,

even when the binder is full. You'll be
able to read them easily and refer to
them quickly. And well post the binder
to you in a batter-proof package at no
extra cost.

It’s an attractive price, too. Only
£3.50, including postage, VAT and
handling. Use the coupon here or, to
avoid defacing your copy of PCN, write
out your order clearly and send it with
payment to the address given.

BINDER ORDER CARD. Please rush me PCN binder(s) at £3.50 each. I enclosed my cheque made
payable to Personal Computer News. Please charge my Access/Visa/Diners/American Expresscard 'SZZ2.,

Account No . . . Name .

Address . Town . Postal code .

. . Signed .

Send to Personal Computer News, Binders Department, 53/55 Frith Street, London W1A 2HG

PCN JULY 28-AUGUST 3. 19K3

57

PCNProgramCards

> Money Maze Card 2 of 3 V.

8321 MM2 3

157 PRINT AT

158 IF «=« THEN 08 TO 4999

160 LET e-c<IINKEV*«"6" AND q(e*l,d>' >1 AND c<29) - < INKEY*-"7" AND q<c-l,dl<>l A
ND c >3>

170 LET d-d<< INKEV9--B" AND q<e, d<l>< >1 AND d< 30) - ( INKEY*»"5" AND q<ctd-l>Ot A
ND d>3>

180 LET a-a<<c>a AND q(a<l,b> l»-<c -a AND q<a-l,b>< 1)

IPO LET b-b*<d>b AND qla,b>ll<>ll-ll'b AND q(a.b-l) I)

200 PRINT AT at, bit" " 1 AT cl, dll” -* FLASH HAT a,bl"£"tAT c,dl"<“

219 IF a-c AND d«b THEN DO TO 500

220 IF q(c,d>-2 THEN LET p»p<INT <RND<19XI9<I9I LET q<c,dX9

239 IF (c-3 AND d-31 OR (c-20 AND d-J) OR <c-3 AND d-39) OR (c-29 AND d-391 THE
N DO TO 1590

235 IF <INKEY*-"t” OR INKEY*»“T"> AND OW-9 THEN LET OW- 1 1 GO SUB 3900
249 GO TO 155

509 PRINT AT 9,91'VOU WERE CAUGHT WITH '"IplAT 1,01 "ON YOUR HANDS - "»AT 2,01“

SEE YOU IN PRISON' "IAT 3,91 "PRESS ""V FOR ANOTHER GO"

519 IF INKEY*o-y" THEN GO TO 519

520 RUN
909 STOP

1909 FOR «•! TO 25
1919 LET a-INT <RND<18X3
1915 LET b-INT <RND<28I<3
1020 PRINT AT a,bi “ ’"

1939 LET q<a.b>-2

1940 NEXT f
1950 RETURN

1590 PRINT AT 9, 91 "YOU HAVE ESCAPED WITH '"IplAT !,8!"WITH "»•«" TINE UNITS TO S
PARE " I AT 2,91 -PRESS "*V“" FOR ANOTHER GAME”

1519 IF INKEY*< >*y" THEN BO TO 1519
1529 RUN

180-190

200

210

220

230

235

240

500-520

Move guard

Print guard and robber
Check for capture
Check for money
Check tor escape
Check for enclosure
End of main loop
Defeat and option for another
90

1000-1050 Printmoney

1500-1520 Success

FCNProgramCards

Money Maze Card 3 of 3 v.

8321 MM3 3

2999 PRINT "ENTER SKILL LEVEL... < I -HARD TO 9-EASVI'

2919 IF INKEY9-"" THEN GO TO 2919

2929 LET 1-CODE INEEY4-4B

2923 IF x<l OR 1>9 THEN GO TO 2919

2939 CLS

2949 RETURN

3999 PRINT AT c-i,dl* *IAT e-l.d|- "I AT c,d«ll" "I AT c,d-I»’ “

3919 LET q<c<l,d>-9

3929 LET q<c-l,d>-9

3939 LET q<c,d<l>-9

3949 LET q(c,d-l)-9

3959 LET a-a-29

4998 PRINT AT 9,91 "YOU HAVE RUN OUT OF TIME... IAT 1,91 "YOU
INVERSE 91” HAVE ' "IplAT 2,91 "PRESS "T* FOR ANOTHER GAME"

4919 GO TO 1519

8999 BORDER 6i PAPER 6l INF. 9l CLS
8829 CLS 1 PAPER 1 1 UR 7

8949 PRINT AT 1 , 1 31 "MONEY" 1 AT I, 131 OVER 1 1 " _ "

8959 PRINT AT 3,81 "IN THIS DANE YOU HAVE TO ESCAPE . FRUN THE SCREEN 10 CINE OF

Tic . COLOURED SOU ARE 5 IN THE CORNERS - WITH AS MUCH HONEY AS POSSIBLE, “

••"BEFORE THE T IMER RUNS OUT. TO . MAI E MATTERS WORSE THERE IS A - GUARD

WHO CHASES YOU. IF YOU ARE" ” "COMPLETELY ENCLOSED YOU l>

SSI NO -T*

8969 PRINT AT 21,91 INK 61 PAPER 21"

8979 PAUSE 9

0989 PAPER 6i INK 8t CLS I RETURN

- ESCAPE BY PRE

2000-2040 Input and checking routine for
skill level

3000-3060 Sub-routine to delete

surrounding squares in
enclosure

4000-4010 Run out of time Option tor

another game

8000-8060 Sub-routine for instructions

PRESS ANY

TO CONTI

OUT NOW! Sll IDEAS
FOR YOUR COMPUTER

In the Inmac catalogue of ideas
for your computer check to see
what is in the latest issue for you:

Cables, cables and more cables!
How to order custom-built cables.
When to use screened cables. How to
choose the right EIA RS-232 extension
cables for your VDU’s and how to
connect your Apple, Commodore, or
other micros to Qume, Diablo, NEC
printers. Compatible cables for
connecting new peripherals to your
DEC, Data General, Hewlett Packard,
IBM, Osbourne, and
Tandy computers.

Lifetime Floppies Read about Inmac
Plus — the floppy
with a lifetime
guarantee!

Choose from
our range
of 100%
error-free
disk

cartridges,
disk

each with a 3-year replacement
guarantee.

New Ideas! Dozens of exciting
new products — many never seen in
Europe before now — and lots of
helpful hints on getting more from
your computer department.

Service and Quality — a promise
you can rely on! We promise a next
day delivery service of our products, a
30-day risk-FREE trial, and a 12-month
trouble-free quality replacement
guarantee.

Send today for your FREE cata¬
logue with no obligation to purchase
— but be warned: you will want to
buy once you have
read the Inmac
catalogue
ideas book!

Machtn* modal Sord M23 MKII, MKV
MKVI Sord V?43 *11 mod*<*. Sord

Exactly what
been looking

A microcomputer is only as useful as the software package run on it. And -
until now - finding the package tailored to your needs (or your customers’) hasn’t ,
been too easy.

Now, Microcomputer Software Directory is here. It’s the complete guid^
for buyers and sellers, helping you both identify and - just as importantly -
locate the most suitable software packages.

We’ve included details of over 3,000 painstakingly edited
business packages, as well as some of the more exciting games.

Sord

Finding the right package

A glance at our twelve main category headings confirms
just how comprehensive Microcomputer Software Directory is.
3,100 software products are listed, under these titles: Systems
Software* Utilities* Accounting* Management Systems* Other
Business & Commercial Systems® Professional Services* Industry
& Manufacturing* Retail & Distribution* Scientific* Educational*
Government* Games/Home/Hobby* Miscellaneous*

Each entry gives the package name, function, supplier, cost
and also tells you which machines it will run on.

Matching with your machine

If you already have a machine, you’ll want to know about
compatibility. So we’ve included an index by machine make and
model. And. just to make life easier stiU, we also cross refer
machine type with operating system.

Principal application* Accounting
Names of software products

Stock Recording. ASS PayroH/Parroll

Knowing where to go

There’s little point in identifying the perfect package unless you know
where to go for it. Our separate alpha listing of suppliers provides all the
information you need; addresses, phone numbers, who to speak to. and an
outline of which other packages are available from them. This section could save
you a few fruitless journeys.

GMS - Garage

System (page
23)

Pinpointing
special needs

Some packages may be
tailored to the unique require¬
ments of your business or
profession. The quick reference
Occupation Index at the back of the
book can cut your search time to
minutes. And if you already know of a
package by name, just go straight to it
They’re all indexed by title and acronym in

the A-Z index. _

In short, if you want to find exactly what you’re looking for. Microcomputer Software Directory is exactly
what you’ve been looking for.

MICROCOMPUTER SOFTWARE DIRECTORY

The Complete Guide for Buyers and Sellers.

I would like to receive a copy of the Microcomputer Software Directory Order by using this form

and take advantage of the special Introductory price of £19.95. or quote your card number

Signature _

My address

Pay on receipt of invoice □ I
Access □ VisaD

American Express □ Diners Club □ I

My card number is _

Please indicate preferred method of payment

L_

_ My telephone no

Alternatively order by telephone 01 323 3211.

Please send this order form to Computing Publications Ltd. Evelyn House,

62. Oxford Street. London W1A 2HG.

_ _ _ _ _ _ _ _ PCN21 1

PCNProgramCards

Collection

Card 3 of 3

440 PRINT-CENTER TITLE-
443 INPTJTT*

430 F0RI-1T023
460 RERUN*. B*

470 IFR*»“Z22“THENPRINT" JbORRY "T* PRINT" SIS NOT IN YUUR»*0M»eCOLLEC T I ON*" GOS ,
UB535

430 IFT*»R*THENPRINT“!«rh* PRINT-IS IN VOUR COLLECTION" PRINT" IT MRS MRDE IN "8*
GOT 0300
43® NEXT I

50® PRINT "*ii* RE ii RNV KEY TO* JKETUPN TO OPTIONS*"

510 OETR* IFR*-"" THEN310
520 PRINT-S” G0T0221

340 WtTRPLERSE PLERSE (IE. 196i

530 DRTRFROM ME TO YOU. 1963. SHE LOVES YOU -1963

360 DRTRI WRNT TO MOLD YOUP HMNI> . 1963

570 DRTMCRN T BUY HE LOVE. 1964

360 IiRTMM MRRD DRY S NI0HT.1964.I FEEL FINE. 1964

390 DRTRT 1CKET TO RIDE . 1963, HELP. 1963

600 DRTMDRY TRIPPER, 1965

610 DRTRPRPERBHCK 1*1 TER, 1966

620 DRTRVELL0I4 SU8MMPINE, 19b6

630 DRTRPENNY LRNE . 1967, RLL YOU NEED IS LOVE, 1967
640 DRTRHELLO GOODBYE- 1967. LRDY MRDUNMh . 1 966
63® DRTRMEV JUDE, 196®. GET BMC! . 1969
660 DHTRTME BRLLRD OF JOHN MND VOKO.1969
670 DRTRSOME THING, 1969. LET IT BE. 197®

680 DRTMSGT. PEPPERS LONELY HEHPTS CLUB BRND. 1967
690 DRTRZZZ.ZZZ

Reads data Returns 722 r » item
not found If search successful
pnnts message

Maintains display and waits for
key press before returning to
menu

End routine Change screen
and border cotour, print

Datalfcfbstitute your own
information in this section

PCNProgramCards
>er Card 1 of 3

Bomber

A simple but addictive game with six skill levels Set Program Card 8307CC for control codes.

0 GOSUB1000

D GOSUB2000 GOSUB710 P0KE54296. 15
0 FORJ-1TO30

3 FORT-20TORND^ 1 > • 1 0* < 9-LEV > +5STEP - 1
0 POKE 1 024* J +404 T . 160 P0KE55296* J +40* T . 3
3 NEXTT.J

? REM ♦ MM IN LOOP *

3 F0RB-7T019 H-LEV*1 FQRR-0TO39 O-N*40*B
3 GETR*

3 IFM*«" "THENGOSUB500
5 I FPEEK (. 1 025* 0 ; = 1 60 T HEN400®

3 PUKE 102340, 32 P0KE55295+0 , 6
3 POKE 102440, 252 P0kE55296*0 . c
3 POKE 102540. 98 P0KE55297*0, 6
3 NEXTR GOSUB400 NEXTB
3 OOSUB800 GOTO210
3 REM • DELETE PLHME *

3 POKE 102340, 32 P0KE55296.2
3 RETURN

i REM *FIR1NG ROUTINE «

3 H-H-l IFH .1THEHPETURN
5 F0R0-B42T013 g«R*404O
3 IFPEEKa0244W)*160THENGOSUB6®0
3 POKE 1 024*14-40 , 32 PGKE55256*W . 2
3 POKE 1024*14, 30 P0KE552364M, 2
3 NEXTO
3 RETURN

Commodore 64

Commodore Basic

Application: Game

Author: Jamie Clyde

100

200

210-240

Call up initialisation sub-routine

Call titles and instructions sub¬
routine

Build skyline

250-330

Loop to move plane across sky .
detect bombs away, report
crash and update score

400-440

Remove plane at end ot each
pass

500-550

Drop a bomb if any left on
current pass

BACK ISSUES SERVICE

HOWTO GETTHEM

All available back copies of PCN can be ordered *

from our new Back Issues Service, using the | Name . . . Telephone (day) .

coupon printed here. Street

For a guide to the subjects covered by Micropaedia 1

every week , see our Micropaedia list above . I Town . Post Code .

Send your orders to: Personal Computer News Please send me . issuesof PCN. issue nos

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readers please add £1 per copy airmail postage Please allow up to ?1 days
delivery *

PCN JULY 2K-AUGUST 3, 1983

J

PCNProgramCards
Bomber Card 3 of 3

4070 PRINT'S", TABU0VWGHBING TOP TEH -
4060 PRINT

40*6 FORO-1TO10 PRINTTAB<5>O.TABUe>H<O>.TABt20>H*<O> NEXT
4100 PRINT " DU PRESS FUNCTION KEY 1 TO RESTART
4110 GETR* IFR$O"B"THEN4110
4120 GOT 0200

44*9 REN • ENTER MEW NAME 4

4500 F0RC“9T 0 1 STEP- 1 H(C*l>-HtC) H*(C»I>*M«<C> rCXT
4510 PRINTTAB*10>"W««*I£LL DONE"

4520 PRINT "•BULGUR SCORE IS IN THE TOP TEN SCORES'

4530 PRINT"«WB»BM*DF-LEhSE ENTER YOUR NMME
4540 INPUTHSU. HSU >-LEFT$(H»<I > , 191
4560 H<.I>“S 1*10
4570 RETURN

5999 REM • TITLE PAGE *

6060 REM

6010 PR I NT "0" FM-* BUNKER •' LEV-1
6020 F0RUI-1T03? PRINTTHBtUI

6036 IFUI>14THEHPRIMTTHB<15)"T‘,LEFTStFS>UI-14,>

6035 FORGH-1TO10

6046 NEXTGH.UI PRINT"TJ“,TAB<30>” "

6045 PPINTTMB' 7 >

6056 PRINT"** , TMB«. 121 "SBONBS PER SNOOP ".LEV
6060 PRINT* TMmilMI DESTROY A GROUP OF BUILDINGS"

6670 PRINT" MNNNHlh ‘E FEW BOMBS PER SWUGF "

6080 PRINT IHMH U RELEASE BOMB PRESS SPACE-BP*"

6090 PRINT IIIIBI ‘ ESS FI Tu CHANGE NO. OF BOMBS"

6095 PR I M >•»»*. Milt ENDS WHEN YOU HIT BUILDING"

6160 PRINT MUinntl ~ A P P V LANDING S"

6110 PRINT ’lUMMKi:* PRESS SPACE BHR TO BEGIN "

6120 GETDK

6136 IFDK-" "THENRETURN
6140 IFDSO'B" THEN6120
6150 LEV*LEV*1 IFLEV-7THENLEV-1

6160 PR1NI euiww* TAB*. 12J "ZBOMBS PER SWOOP ".LEV Gu 106 120
10006 DHTHwOg. 0.129. 255. 255. 6. 0.255, 15 65.255. 255

10010 DATA? .53,8,23.8. 147,9, 159, 10.265.11, 114, 12, 216. 14. 107, 16,47. 17,37, 19.63
10020 DATA21 , 154,22.227.25, 177,28,214, 32,94, 34 . 75, 38, 12c 43- 52, 45. 198

Routine to display top ten
scores and names with prompt
for next game

Routine todisplay instructions
and allow change in difficulty
level (number of bombs per

10000-10020 Data statements tor

user-defined graphics loaded
by routine at 101 0- 1 020

mt rLtAJBLt LUmKU I tK bYSI t/»l hUK I Ht FUIUKL

SOFTWARE

i a variable on cassette only Prices include VAT and post and
packing)

ORIC FORTH language Requires 48k machine
Price £15 90

ORIC BASE *or the maintenance of personal and small
business information Requires 48k machine
Price £1540

ZODIAC adventure game Requires 48k machine
Price £ 1 0 39

ORIC CHESS Requires 48k machine
Price £10.39

ORICMON A complete machine code monitor Either 1 6k
or 48k machines
Price £15 90

One Products are pleased to announce the release of the
four-colour printer

The Printer uses standard 4 inch paper and is swrtchabte
between 40 and 80 characters per line

HOUSE OF DEATH game Requires 48k machine
Price £1039

MULTI GAMES PACK 2 Requres 48k machme
Pnce £7 30

ORIC MUNCH game Requires 48k machine
Price £8 35

The writing mechanism is a clever arrangement of tour
miniature bail-point pens (red. green, blue and black inks )
There are 1 5 programmable character sizes and four different
drawing angles

The pen plotting facility allows the drawing of con^tex
diagrams and pictures

The pnce includes an integral power supply and printer lead

You may place your order by phonaig our telesales number on ELY (0363) 2271/2/3/4 or by completing the postal form below

Payment may be made by cheque, postal order,

Bardaycard Visa or Access

A* cheques and postal orders should be made . ^ _

payable to Tansoft Ltd

Fa credit card payment please quote Access, ~ “

Bardaycard Visa No

All orders should be sent to Tansoft Ud. FVI ooloa brochure and software catalogue

3 Club Mews, By. Cambs C87 4NW is available on request

PCN JULY 28-AUGUST 3. 19K3

PCNProgramCards

Definer Card 1 of 4

8321 D1 4

A practical utility for BBC programmers that allows the creation and storage ol user-defined
characters

BBC Model B
BBC Basic

Application: Utility
Author: A Phillips

30 ONERFtOR GOTO 160
40 PROCinlt
SO PROCarrayc
60 REPEAT
70 HOPE 1
80 PROCgrtd
90 REPEAT
100 PROCinput

110 UATIL lnpS«"

1 20 HOPES I PROCn cm

130 UNTIL GX-83

140 MOPE7:*SAVE "CHARS” COO PO0

ISO GOTO 180

160 IF ERR= 1 7 RUN

170 MOPE7|REPORTiPR1NTERL

180 »F X 4 , O

190 EN0

20O . . . . ••«•••

210 OEFPROCinlt
220 »FX4, 1
230 CX-224

240 P1H X1X<64),X2X<64),V1X<64>,Y2X<64>
2S0 DIM ValXIBI , TotX<8> ,VVX<8)

260 G*— “ ABCDEFGM"

270 BCord*-“AlA2A3A4A5A6A7A8BIB2B3B4B3"
280 SCor d *=SCor d * ♦ " B6B 7B8C I C2C3C4CSC6 "
290 SCord»-SCord*+“C7C8DI D2D3D4D5D6D7"
3O0 SCordS=SCord4* "D8E 1E2E3E4E3E6E7E8"
310 SCordS=SCord«*"FlF2F3F4F5F6F7FBGl"
320 SCordS-SCord**“G2G3G4G5G6G7G8HlH2"
330 SCord*=SCord**" H3H4H5H6H7H8”

340 REDS-CMR*I7*CHRS1
350 YELS«CHRS17*CHR*2
360 WH!«=CHR*17*CHR*3
370 ENDPROC

30-190 The mam program loop which
has full control over the
remainder of the program ,
calling relevant procedures as
required, ft repeats until enter
S' for SAVE, ft then stores the
file, resets the editing keys and
ends

210-370 Set up all arrays and define the
control strings tor colour and
screen displays

PCNProgramCards
Definer Card 2 of 4

8321 D2/4

390 DEFPROCarraya 390-500

400 FOR IX" 1 TOGt READVXi VYX < IX) — YX* NEXT IX

410 DATA5.8, l l, 14. 18,21,24,27

420 XX-1041 YX-804

430 FOR I X" 1 T064

440 X1X(IX)-XX

430 X2X (IX)"X1X(IX) ♦92

460 Y1X<IX)"VX

470 Y2X (IX) — Y1X C IX) *92

480 IF IX MUD 8-0 I HEN XX-XX* lOOl YX-804 ELSE YX-YX-10O
490 NEXTIX
S00 ENDPROC

S10 . . .

S20 DEFPROCgr i d 520-740

S30 VDU5
340 GCOL0.3

SSO G XX— lOOl GYX" 1001 GXXX-lOOl GYYX" 100
560 FORIX-1T09

570 HOVEGXX, GYXl DRAW900, GYX
580 GYX— GYX* 1 00

590 MOVEGXXX.GYYXlDRAWGXXX.900
6O0 GXXX— GXXX+100
610 NEXT IX
620 GCOLO, 1

630 MOVE 1 1 48.5401 DRAW! 248, 540s DRAW 1 248. 440> DRAM1 1 4B. 440: DRAW1 1 48.540
640 GXX— 1 401 G YX— 8S6
650 GCOLO, 2

660 F0RIX-1T08 >

670 MOVE48.GYXIPR1NTUX

680 MOVEGXX. 944t PRINT MID* (G4, IX, 1 )

690 GXX— GXX* 1001 GYX— GYX- 100

700 NEXTIX

710 VDU4

720 FOR 1 X— 1 1 08

730 PR I NT TAB <31 , VYX <IX))“0"

740 .NEXTIX

750 PR I NT TAB <1,11 REDS I ” <Pr •»* SPACE BAR for ntxt character)” 750-780

760 PR I NTT AB < 30, 3) REDS < “Val ua“

770 PRINT1AB<36, 13) YELSi "CHR“ 5 TAB < 36, 14ISTR«<CX)

780 ENDPROC

790 . 1 1 1 1 • I 1 1 1 1 1 1 1 . . 1 1 1 1 1 1 1 1

Procedure to fill the arrays
defined in PROCinit

Draws the editing grid and
displays screen co-ordinates

Space bar allows scrolling
through the character set

Continued next week

CENTURY

YOUR SEARCH FOR FULLY TESTED
EDUCATIONAL PROGRAMS
FOR THE BBC MICRO IS OVER

CENTURY

PCN JULY 28-AUGUST 3. 1983

Li ill'll

PCN reviews the latest contenders for space on your bookshelf.

LEARNING

LOGO

ON THE APPLE 11

— Ml 11*1

“ItJW

‘Learning Logo on the Apple 1 1’ by
An neMcDougaM, Tony Adams and
Pauline Adams published by
Prentice-Hall at £1 1 (paperback,
250 pages)

Seldom have I heard of. let
alone read, an instruction
manual/tutorial that is excel¬
lent. This one is by far and away
the most instructive hook I have
come across.

Even a non-novice can
appreciate the amount of effort
that has gone into producing a
really down-to-earth step-by¬

step book. Not only docs it start
from the premise that the
reader has yet to turn on the
Apple, but it is written in such a
way that anybody can learn
from it.

Each new concept or instruc¬
tion is lavishly illustrated with
example screen output, so you
can see what you should have
produced whilst working
through it. Amongst this multi¬
plicity of pictures and examples
are tutorial questions and exer¬
cises, just to make sure you
have a good understanding of
each chapter before progres¬
sing to the next.

Obviously, when using this
book you should have access to
an Apple and a version of Logo.
According to the authors, there
are currently only two versions
of Logo for the Apple, the
MJT version and Apple's own
AppleLogo. There are differ¬
ences between the two in opera¬
tion, but this book continually
shows its examples for both
versions, thereby increasing its
scope. I must admit I could go
on and on. Suffice to say, if you
want to learn Logo, go out and
buy this book. NC

‘Mastering the CoiourGenie’ by
Ian Sinclair, published by Granada
at £5.95 (paperback 143 pages).

Mastering the Colour Genic is
aimed primarily at the begin¬
ner, and assumes no previous
knowledge of computing. The
book introduces and covers the
use of Basic commands that are
available on the Colour Genie.

The chapters progress from
using simple statements such as
the variable assignment (LET),
and the print statement. Small
progams are nicely placed with¬
in the text to illustrate the use of
the various Basic commands,
and the text also explains what
the program is doing, which
helps the reader to understand
how it works.

Chapter seven gives the read¬
er a nice and easy introduction
on producing graphics on the
Colour Genie. High resolution
graphics using pixels along with
explanation and examples of
how to use the plot and paint
command are explained in a
manner that shouldn't perplex.

Chapter nine is devoted to
using the sound facilities that
are available on the Genie. A

general introduction is given on
the nature of sound, along with
some basic musical termin¬
ology. Example programs arc
given, and the reader can type
these into the computer in order
to hear the various tones that
can be produced.

Overall this is an easy book to
read, and it's well laid out. The
information it contains should
provide the beginner with suffi-
cent knowledge to be able to go
on to greater things. TJ

At last! A joystick that works!

ff CAMBRIDGE COMPUTING

• Compatible with Spectrum, ZX81, Jupiter Ace

• 2 Independent Fire Buttons

#8 Directional Microswitched action

• Plugs into edge connector

# Interface complete with edge connector
•Atari joystick compatible
•Joystick with Interface £29.90

Enquiries from dealers
are welcome, ring
Chris Lloyd on
0223 522905

PCG

Please send me: r~

. Joystick, interface, and tape • £29.90.... [£_

SpectrumO ZX8lD Jupiter AceO

. interface and tape @ £24.00 .

Spectrum!!] ZX8lD Jupiter AceD

. joysticks @ £7.00 . .

Spectrum 0 ZX8lG Jupiter AceD

Tout including VAT.

[£ _ ,

_____ Please make cheques

I and P.O.s payable to:

-j Cambridge Computing,
1 1 Benson Street,

1§ _ | Cambridge CB4 3QJ.

PCN JULY 28-AUGUST 3, 1983

CLUBNET

Clubnet keeps >ou in touch with enthusiasts throughout the
country. It is divided into two sections — microcomputing and
user groups.

We publish a list of these groups on alternate weeks. This week
user groups are listed alphabetically by machine and special
interest.

Each week we focus on an individual club or group with a

fly-on-the-wall report. This week we feature the British Osborne
Owners Group.

If your association has something special on the agenda or if
you’ve just started a new one. contact us at Clubnet. Personal
Computer Sews, VNU, 62 Oxford Street, London W'l A 2HS.

The user groups listing is based on that of the Association of
Computer Clubs.

with Adam

Dr. Kims Osborne speaking at the second British Osborne Users’ Annual Meeting.

Boogie

Close on one hundred people arrived at the
Cavendish Conference Centre in London’s
West End to listen to Dr. Adam Osborne,
who arrived to give a talk to members at the
second British Osborne Users' Annual
Meeting.

The group officially started in January
this year with its first meeting in April.
Organiser John Anglesea says they intend
to meet quarterly, and a newsletter
affectionately known as BOOGIE (British
Osborne Owners Group Information Ex¬
change) will come out four times a year.

‘The next meeting will be in the form of a
fair incorporating software demonstra¬
tions. It should take place at the National
Liberal Club in London in the Autumn,'
said Mr. Anglesea.

Future plans include presentations of
particular applications such as Wordstar.
Members will be encouraged to take their
Osbornes along to meetings and work¬
shops which Mr . Anglesea hopes will be set
up throughout the UK.

The 300 members includes academics,
doctors and journalists. Cecil Machin,
chairman of management consultancy
Machin Associates in Rustington, Sussex,
said: ‘I joined for the tips and advice — it's
good to be able to talk to people who have
the same kind of problems.'

An Osborne is even in use at the Society
for the Protection of Ancient Buildings.
One of their employees finds the Osborne
very useful for organising tours, numbers

for the coach, numbers for lunches, word
nrocessins. etc.

Dr. Osborne, made it clear he doesn't
exactly bust a gut to keep his company
running along smoothly. ‘I'm more likely
to die of sunstroke than a heart attack.' he
joked, after explaining his simple business
philosophy — ‘if people have heard of a
product, they’ll buy it.'

Dr. Osborne explained how he wrote a
book called ‘An Introduction to Micro¬

computers’ in December 1975, only to find
that no-one would publish it — so he
published it himself and sold the full print
run of 10,000 copies in three months.

The Osborne machine itself was
launched at the West Coast Computer Fair
in March 1981.

The first machine was shipped in July
that year, after what Dr. Osborne de¬
scribed as ‘a tremendous response from
the computer press'.

USER GROUPS

Coventry Acorn Atom User Group Peter
Frost. 18 Frankwell Dnve, Coventry, 0203
613156

Kent Medway Acom User Group Meets it
St John Ftsher School on last Monday of
month at 7pm Sessions at 9pm Thursday
at the Fox and Hound. Chatham Clem
Rutler. c o St John's Fisher School.
Ordance Street. Chatham. Kent. 0634
4281 1 (day). 0634 373459 (evenings)
Manchester Acom User Group Meets at
AMC. Crescent Road. Crupsall. Manchester
8 on Tuesday except school holidays John
Ashurst. 192 Vendure Close. Farlsworth.
Manchester. 061-681 4962

British Apple Systems User Group. P0 Box
174. Wattord WD2 6NF
Bristol Apple Users and Dabblers Meets at
10 Waring House. Redckffe HU. Bristol
BS1 6TB. once a month EwaDaDkowski.
c o Datalrnk. 10 Waring House. Redcirtf*
HIM. Bristol BS1 6TB. 0272 213427
Buckinghamshire Apple User Group Steve
Prohlt. The Granary. Hill Farm Road.
Marlow Bottom. Buckinghamshire. 062 84
73074

Croydon Apple User Group Meets at Sidda
House. 350 Lower Addrscombe Road.
Croydon, on second Monday of month
Paul Vernon. 60 Flawkhurst Way. West
Wickham Kent. 01-777 5478
London Apple Music Synthesis Group Dr
Davis Ellis. 22 Lennox Gardens. London
SW1

Milton Keynes Microcomputer User Group
Meets every Tuesday, 7 30pm Brian Pam,

’ Sir Frank Markham School. Woughton
Centre. Chaftron Way. Milton Keynes

At art

Birmingham User Group Meets at the
Malaga Gril. Matador Public House. Bui
Ring shopping centre. Birmingham, on
second and fourth Thursday every month at
7 30pm Mike Aston. 42 Short Street.
Wednesbury West Midlands
Carshalton Atari User Club PaulOeegan.
01-642 5232

Hell Atan Users Local Group Harvey Kong
Til. 546 Holdemess Road. Hull HU9 3ES
Hull 7911094

Loedon Silica Atan 400 BOO User Club
Richard Hawes. 01-301 1111
Nerwlch Atari User Group Ken Ward.
Norwich 661 149

Preston Atari Computer Enthusiasts Meets
at KSC Qub. Memon House Beach Grove.
Ashton, Preston, on third Thursday of

month at 7 30pm Roger Taylor, 0253
738192

Atom

Liverpool BBC and Atom User Group
Meets at Old Swan Technical College.
Room C33 on first Wednesday of month at
7 30pm and at Birkenhead Technical
College on Herd Thursday of month at
7 30pm Nick Kelly. 061-525 2934
(evenings)

BBC

Laserbvg is an international user group for
the BBC micro Paul Barbour lOOawiey
Ride. Coinbrook, Slough. Berks. 02812
30614

Beekug. Sheridan Williams or David
Graham at PO Box 50. St Albans.
Hertfordshire AL1 2AR
Bournemouth BBC User Group Meets at
Lansdowne Computer Centre. 5
Hoidenhurst Road. Bournemouth on first
and fourth Wednesday of month al
7 30pm Norman Carey , 0202 749612
Brent Barnet User Group Meets on last
Sunday of month Joseph Fox. 4 Harman
Close London NW2 2EA
North London BBC Micro Users Group
Meets at The Pnnce of Wales. 37 Fortune
Green Road, on Tuesdays at 7pm Dr Leo
McLaughlin. Westfield College. University

of London. Kidderpore Avenue. London
NW3 7ST. 01-4350109
Preston ores BBC Micro User Group
Meets at Boatmans Arms, Marsh Lane.
Preston, on last Thursday of month
Duncan Coulter, 8 Briar Grove. Ingol.
Preston. Lancashire. 0772 725793
Witham (NAMEBUG) BBC Micro User
Group Meets at comprehensive school.
Witham on second Thursday each month at
7 30pm Dave Watts 0245 356127 after
7pm
Comal

London Comal User Group Meets at
Polytechnic of North London. Holloway,
second Wednesday of month, term time
John Collins. 7574111

Commodore ICPUG

Barnsley. Bob Wool. 13 Ward Green.
Barnsley. South Yorkshire. 0226 85084
Blackpool. Meets at Arnold School
Blackpool, on third Thursday of month
Oavtd Jarrell, 197 Victoria Road. Thornton
Cleveleys. Blackpool FY53ST
Canterbury SE. Meets at The Physics Lab.
Canterbury University, on first Tuesday and
Wednesday of month R Moseley.
Rosemount. Romney Hill, Maidstone. 0622
37643

Carrfckfergus David Bolion. 19
Camckbum Road. Carnckfergus. Antnm

70

PCN JULY 28-AUGUST 3. 1983

CLUBNET

—

BT38 7ND 09603 63788
Cheltenham Meets at the Cheltenham
Ladies College on lest Thursday ol month at
7 30pm Alison Schoheld. 78 Hesters Way
Road. Cheltenham. Gloucester. 0242
580789

Clwyd John Poole. 6 Rxlgway Close.

Connah's Quay. Clwyd CHS 4LZ
Corty Peter Ashby. 21 5 Wmcohn Way.

Corby. Northamptonshire. 05363 4442
Coventry Meets at Stoke Park School and
County College at 7pm on lourth
Wednesday ol month except July. August.

December Will Light, 22 tvybridge Road.

Stvyechale. Coventry, Warwickshire
Derby Meets at Derby Professional Colour
every other Tuesday at 7pm Robert Watts.

03322 72569

Durham. North-fast Pet and ICPUG Meets
at Lawson School. Burnley at 7pm second
and third Mondays Jim Cocailis. 20
Worcester Road, Newton Hall Estate.

Durham

Dyted. Simon Kmveton, 097 086 303
Halnault. Meets at Grange Remedial
Centre. Woodman Path. Hamault Carol
Taylor. 101 Courtlands Avenue. Cranbrook.

Glasgow Dr Jim MacBrayne. 27 Daidmyre
Crescent. Newton M earns Glasgow. 041-
639 5696

Gloucester end Bristol Area. Meets at 23

Sheppard Lean. Wotton-under-Edge.

Gloucester, on last Fnday ot month
Hampshire Meets at 70 Reading Road,

Famborough, on third Wednesday ol
month Ron Geere. 109 York Road,

Famborough, Hants. 0252 542921
Hertfordshire North. Meets at Provident
Mutual Assurance. Purwell Lane. Hrtchm.
on last Wednesday of month B Grainger .

73 Mmehead Way. Stevenage, Herts SGI
2HS. 0438 727925

Kilmarnock Meets at Symington Pnmary
School on first and third Thursday of month
at 7pm John Smith. 19 Brewlands Road.

Symington, Kilmarnock KA1 5RW, 0563

11 ll'l.'lll

COMPUTER

REACHES THE CUSTOMERS
OTHER MICRO MAGAZINES
CANNOT REACH

CALL: NIC JONES
AND HIS TEAM
ON:

01-323 3211

830407

Liverpool. Meets at The Merchant Taylor
School for Boys, Crosby, on second
Thursday ot month at 7pm Tony Bond. 27
Ince Road. Liverpool L234UE. 051-924
1505

London. Alan Birks. 135 Queen Alexandra
Mansions. Judd Street, London WC1 .
01-430 8025

London North. Barry Miles Department ol
Business Studies, North London
Polytechnic. Holloway Road. London N7.

01 -607 2789

Norfolk. Peter Pens. Bramley Hale
Wretton. King s Lynn. Norfolk PE33 90S.
0366 500692

Northumberland Graham Saunders. 22
Front Street. Guide Poet. Northumberland
Slough Meets at Slough College on second
Thursday of month at 7 30pm Brian
Jones. 53 Beechwood Avenue. Woodley.
Reading RG5 3DF. 0734 661494
South-East. Regional Group Meets at
Charles Darwin School. Jail Lane. Biggin
Hid. Kent, on third and fourth Thursday of
month at 7 30pm Jack Cohen. 30
Brancaster Road, Newbury Park. Ilford.
Essex. 01-597 1229

South Midlands Meets at 1 2 York Street
Stourport-on-Sevem on last Thursday of
month M J Memman at above address
.Staffordshire. 57 Clough Hall Road.

Kid sg rove. Stoke-on-Trent
Teddtogten G Squibb 106 Teddmgton
Park Road. Teddmgton. Middlesex. 01-977
2346

Watford. Meets on second Monday of
month Stephen Rabagbah. c/o Institute of
Grocery 01st Grange Lane. Letchmore
Heath. Watford. Herts, 01-779 7141

Commodore Pet

Blackpool West Lancashire Pet Users
Club Meets it Arnold School . Blackpool on
the third Thursday ol month DJowett. 197
Victoria Road. East Thornton. Blackpool
FY535T

Southern Users of Pets Association

Howard Pilgrim. 42 Compton Road.
Brighton BN15AN

Pat User Group Crawley. Richard Dyer. 33
Parham Road. Ilfield, Crawley
Pet Users Education Group. Dr Chns
Mb DpM«IPI|M| Ohm
Elizabeth College. Camden Hill Road.
London W8 7 AH

UK Pet Users Club. 360 Euston Road.
London NW1 3BL

Pat Utars Group Meets at North London
Poly Barry Miles. 01-607 2789
Pet User Club. Margaret Gullriord. 618
Leigh Road. Slough Industrial Estate 0753

Commodore Vic

Burnley John Ingham. 72 Ardwick Street,

Burnley. Lancashire

London Vic Users Group Meets on

alternate Tuesdays at 6 30pm at

Polytechnic ot North London. Community

Centre Robin Brad beer

Norfolk J Blair. 7 Beach Road. Cromor.

Norfolk. 0263 512849

Compucolour

Caversham. Compucolour Users Group
UK Meets al Community Centre,
Caversham Park Village twice a year Peter
Hlner. 11 Pennycroft. Harpenden,
Hertfordshire. 05827 64872

CPU*

Irish CP M Users Group Meets monthly m
Dublin area Doug Notley. Gardner House.
Baltsbridge Dublin 4. Dublin 68641 1
UK CPM Users Group Lesley Sp«er. 11
Sun Street. London EC2M 2QO. 01-247

COSMAC

COSMAC Users Group. James
Cunningham. 7 Harrowden Court.

Digital Equipment

Digital Equipment Users Society. The

Secretary. PO Box S3. Reading. Berkshire.
0734 387725

Brixham Dragon Osmers Club. Meets at

Computer Systems (Torbay). Pump Street.
Bnxham, every Saturday at 2 30pm Ian
CTupperf teld . 22 Brookdaie Court. Bnxham.
Devon. Bnxham 59224

Education

Birmingham Educabon ZX8081 User
Group Eric Deeson. Highgate School.
Balsail Heath Road. Highgate. Birmingham
B1290S

Birmingham MUSE National body tor
co-ordinating activity in schools, colleges
Lorraine Boyce. MUSE Information Office.
Westmil College. Weoley Park Road.
Birmingham. 021 -471 3723
Dublia. Computer Education Society of
Ireland Darrmuid McCarthy. 7 St Kevins
Park. Kilmacud. Blackrock Co Dubhn
Middlesex. Educational Users Group
Offshoot ot Nabonal TRS-80 Users Group
Dave Fletcher. Head Teacher. Beaconsfietd
First and Middle School. Beaconsheld
Road. Southall. Middlesex
Worcestershire Mini and Microcomputer
Users m Education Nabonal organisation
R Tngger. 48 Chadoota Way. Catshili.
Bromsgrove. Worcestershire B61 OJT

Forth Users Group Daw) Husband. 2
Cohesion Road. Branksome, Poole. Dorset
BH1 2 1NW. 0202 764724
Forth Interest Group UK. Meets at Room
408. South Bank Polytechnic on the first
Thursday ol month K Goldie- Morhson . 15
St Albans Mansion. Kensington Court
Place. London W8 5QH. 01-937 3231

71

PCN JULY 28- AUGUST 3.

CLUBNET

Fonim

Forum 80 Users Group. Frederick Broom.
421 End.ke Lane. Hull HU6SAG

FX-500P

FX 500 P Uteri Association Mas Francis.
38 Grymsdyk*. Great Missenden.
Buckinghamshire HP16 OLP

Genealogists

Society at Genealogists Computer Interest

Group Anthony Camp. 01-373 7054

Genie

Colour Genie User Group Details ot
meetings memtarshi p from Pat Doohan.
secretary, Nottingham (0602) 278791

Intel MDS

UK Intel MOS Users Group. Lewis Hard,
c/o S P A C E . The Old Coach House
Court Row. Upton-on-Severn. Worcester
WRBONS

Ithaca Audio SI 00
Ithaca Audio SIM Users Group. Dave
Weaver. 41 Dore Avenue. North
Hykenham . Lincoln LN68LN

Jupiter Ace

Jupiter Act Users Group. John Noyce,

Rem soft 18 George Street. Brighton BN2
1RH

Mattel

Mattel Intellrvision TV Game Group

Warnngton 62215 alter 4pm

Medical

Durham Pnmary Health Care Group Dr
Alastair Malcolm British Computer
Society. Cheveley Park Medical Centre.
Belmont. Ourham 0385 64282
London. Medical Micro Users Group
Medicom. 1 -2 Hanover Street. London W1
Middlesex TRS-80 Medical and
Laboratory Users Dr Robinson. The
Residency. Northunck Park Hospital.
Harrow. Middlesex

Nascom

Berkshire. Nascom Thames Valley User
Group Meets at Frogmore Hotel Windsor,
on Thursday fortnightly 8pm Mike
Rothery, 37 Eaton Wick Road. Eton Wick.
Windsor Berkshire. Windsor 56106
Birmingham Nascom User Group Meets
at Davenports Social Club. Granville Street.
Birmingham on the last Thursday ot month.
8pm Martin Sidebotham. 021-744 3093
International Nascom Microcomputer
Club 80 Oakhetd Corner. Sycamore Road.
Amersham, Buckinghamshire HP6 5EQ
Merseyside Nascom User Group Meets at
Mona Hotel. St James Street. Liverpool on
the first Wednesday of month. 7 30pm Mr
TSeade 051-526 5256

Newbrain

Wakefield independent Newbrain User
Group Anthony Hodge. 15 St John's
Court. Wakefield WF1 2RY

Ohio0 Scientific User Group Tom Graves.
19a West End. Street, Somerset. 0458
45359

Ortc

Orlc Owners Group Paul Kaufman 3 Club
Mews. Ely. Cambridgeshire

Osborne

British Osborne Owners Group J

Anglesea. Flat 19. Rowan House. Mitton
Road. Handsworth Birmingham B20 2JR

OSI

OSI UK Usar Group. Richard Elen. 12
Benneriey Road. London SW1 1 SOS

Pascal

Pascal User Group. Nick Hughes. PO Box
52. Pinner. Middlesex HAS 3FE

POP

Buckinghamshire POPS User Group Nigel
Dunn. 21 Campion Road. Widmer End.
High Wycombe. Buckinghamshire. 0494
714483

Hertterdshire PDP11 User Group Pete
Harris. 1 19 Carpenter Way. Potters Bar.
Hertfordshire EN6 SOB. 0707 52091

Pilot

UK Pllet User Group Alec Wood. Wtrrai
Grammar School tor Boys. Cross Lane.
Betxngton Wirral. Merseyside LG3 3AQ

Preslel

ACC National Preslel Committee

Administrates Club Spot 800 (hobbyists on
Preslel) Rupert Steele. St John's College.
Oxford 0X1 3JP

Research Machines
Birmingham Research Machines 380Z
Peter Smith, Birmingham Educational
Computing Centre. Camp Hill Teachers
Centre. Stratford Road. Birmingham B1 1
1AR

Leamington Spa. West Midland RML User
Group Spencer Instone, c/o 59 Avenue
Road. Leamington Spa
Newcastle NERML 380Z User Group
Meets monthly at Micro-Electronics
Education Centre ot the Polytechnic Coach
Lane Campus Mr Hatfield or Mr Read.
Computer Unit. Northumberland Building
Newcastle Polyteehmc. 0632 326002
Oxford. Research Machines National User
Group RML Mill Street. Osney. Oxford
0X2 OBW 0865 249866
Oxford. Research Machines Ltd National
User Group M 0 Fisher PO Box 75. Oxford
0X4 1EY

Sharp MZ80

Aberdeen. International Sharp Users
Group Graham Knight, t o Knights
Computers. 108 Rossemount Place,
Aberdeen 0224 630526
Essex. Sharp MZ80K User Group Joe
Street. 16 Elmhurst Drive. Hornchurch,
Essex RM 11 1 PC.

Leeds. Sharp PCI 21 1 Users Dub
Jonathan Dakeyne. 281 Lldgett Lane.

Leeds LSI 7 3AO

Somerset. Sharp MZ80 Users Club Tim
Powell. Computer Centre. Yeovil College.
Yeovil. Somerset BA214AE

Sinclair

Brighton ZX Users Group J Ireiand-Hili
Jnr. 145 Godwin Road. Hove. Brighton
Aylesbury Sinclair ZX Computer Club Ken
Knight 0296 5181

Colchester Sinclair User Group Meets
fortnightly Richard Lawn. 102 Pettygate
Road. Colchester Essex
Cardifl. ZX Club Meets on last Sunday of
month. 2pm Mike Hayes. 54 Oakley Place.

Remember

Let us know about your micro club or user group
so we can be sure the information printed here is
up to date. Drop a card to YYendie Pearson.
Listings Kditor, at Personal Computer Sews, 62
Oxford Street, London VV1 A 2H(>, or give her a
call on 01-636 6890, _

Grangetown. Cardiff. 0222 371732
Edinburgh ZX Meets at Claremont Hotel.
Claremont Crescent. Edinburgh, on second
and fourth Wednesdays every month.

7 30pm John Pafmer 56 MeadowheW
Drive. Edinburgh. 031-661 3183
Glasgow. ZX80 81 User Group Ian Watt.
10 Greenwood Road. Clarkston. Glasgow.
041-638 1241

Liverpool ZX Computer Club Meets at ZX
Computer Centre. 1 7 Sweeting Street.
Liverpool, on Wednesday. 6 30pm Keith
Archer. 051-2604950
Lontfen National ZX User Club Tim
Hartneb. Interface. 44-48 Earls Court.
London W8

London Sinclair User Group Meets at
Polytechnic ot North London. Room 2-5
Tower Block Monday 6 30pm living
Brand, Polytechnic of North London,
Holloway Road. London
ZX Spectrum Club D Beattie 63 Kingsley
Crescent. Sawtey. Long Eaton. Nottingham
NG10 30A

Staffordshire ZX80 National Software
Association 15 Woodlands Road.
Womboume Staffordshire WV5 OJZ
Suffolk ZX Amateur Radio User Group
Paul Newsman 3 Red House Lane.

Leiston. Suffolk. SAE essential No
telephone inquiries

Sumy. Guildford ZX8081 Users Group
Meets Fridays A Bond. 54 Famham Road.
Guildford. Surrey GU2 5PE 0483 62035
Sumy. ZXBO'81 User Club David Bigden,
PO Box 159. Kingston- upon- Thames
Surrey KT2 5UO

West Sussex Hassocks ZX Micro User
Club Paul King. 25 Fir Tree Way.

Hassocks. West Sussex.

Siriui

Sirius User Group Ray 0 Arcy. Sinus User
Club. The Microsystems Centre, Enterprise
House. 7-71 Gordon Street. Luton, 0582
412215

68 XX

6IXX Special Intarest Group Tim Turner
63 Millais Road. London El 1 4HB. 01-556
3681

Software

Lenduu. Software Group Meets at
Polytechnic of North London. Room 2-3
Tower block Thursday 6pm Mike Duck at
Polytechnic of North London. Holloway.
London N7

Oxford. Program ot the Month Club Mr
Durrani. 55 St Thomas Strtet. Oxford 0X1
1JG. 0855 250333

Sorcerer

Liverpool European Sorcerer Club

Monthly meetings Colin Marie. 32
Watchyard Avenue. Formby. near Liverpool
L373JU 07048 72137
Sumy. Exidy Sorcerer User Group Andy
Marshall 44 Arthurs Bridge Road. Woking.
Surrey GU21 4NT

Spreadsheet

International Electronic Spreadsheet
Users Group. UK Alpha House, 7th Floor.
Rowtandsway. Manchester M22 5RG

IvMT^angenne Users Group Bob Green.

1 Marlborough Drive. Won*. Avon. 0934
21315

Bristol. Tangerine Homebrew A Coales 35
Mogg Street. St Werburghs. Bristol BS2
9UB.

Texas Instruments
Leeds. TI994A User Group Meets at 30
Gipton Wood Road. Leeds 8. Mondays
7pm I Youlden. 0532 401408
Manchester Ti User Group T Gnmshaw.
21 Ailingham Street. Longsight.

Manchester

Manchester TI9900 User Group Chns
Cadogan. Department ot Computer
Soence. University ot Manchester Ml 3
9PL

Triton

Triton User Group. Nigel Stride Transam
Ltd. 12 Chapel Street. London NW1.
01-4028137

TRS-80

Birmingham. National TRS-80 User Group
Meets at Adam & Eve Pub. 1st Floor
Bradford Street. Birmingham on last Fnday
of month Michael Gibbons. 1 New Street.
Castle Bromwich. Birmingham B38 9AP.
021-747 2260

Chelmsford TRS-80 User Group Michael
Dean, 22 Roughtons. Gaileywood.
Chelmsford. Essex

Durham North East TRS-80 User Group
Meets at Information Technology Centre.
Gateshead on the third Wednesday ot
month. 7pm J Dunn. 8 Ettrich Terrace.
North Gateshead. County Durham
Edinburgh Scottish TRS-80 and Genie
User Group Meets at Mansion House
Hotw. Milton Road, second Thursdays of
month Dick Mackie. 3 War render Park
Crescent. Edinburgh EH9 10X. 031-229
6032

Isle ot Wight TRS-80 User Club Meets at
London Hotel . Ryde on last Friday of
month 7 30pm Sean Coulson, 0903
614589

Kant. TRS-80 User Group Alan Reid. 22
Woodeys Road. Ramham. Kent. 0634
367012

Bolten Northwest TRS-80 User Group
Meets at Barton Aero Club. Barton
Aerodrome. Irtam. near Manchester on last
Wednesday ot month . 8pm Subgroup
meets at Crown Hotel Btackfnars Street
on first and third Monday of month Melvin
Franklin. 40Cowlees. Westhoughton.
Bolton. Lancashire

Lhrerpoel. UK DOSPLUS User Group Peter
Toothil. 101 Swanside Road. Liverpool
L14 7NL 051-220 9733
Liverpool. Merseyside TRS -BOVUeo
Gome User Group Meets second Thursday
ot month 7 15pm Peter ToothiN. 101
Swanside Road. Liverpool L14 7NL 051-
220 9733

London. SW. TRS-80 User Group Ron
Event! on 01 -394 2123
Merseyside. TRS-80 User Group N
Rusiiton. 123 Roughwood Drive.

North wood Kirby. Merseyside
Milton Keynes. National TRS-80 and Gene
User Group Brian Pam. 24 Oxford Street.
Stony Stratford. Milton Keynes
London. TRS-80 Gome Group Meets at
Central Common Room. The Residency
North wick Park Hospital on First Sunday ot
month Dr Nick Robinson. Central Room.
The Residency. Northwich Park Hospital
Northerns. TRS-80 User Group Meets at
Welwyn Park Community Centre on
alternate Thursdays at 7pm Ned Gnttlths.
0858 65718

Nottingham East Midlands TRS-80 User
Group Mike Costello. 15 Langbank
Avenue. Rise Park. Nottingham NG5 5BU.
0602 751753

Colour Genie

National Colour Genie User Group. Marc
Leduc. 46 Highbury Avenue.
Nottinghamshire NG6 9DB

UCSD

Hants. UCSO System Users Society John
Ash. Dicoli Data Systems Ltd. Bond Close.
Kingsland Estate Basingstoke. Hants RG2
006

Oxfard. UCSO Pascal UK Users Group
Malcolm Harper, Oxford University
Computing Laboratory Programming
Research Group. 45 Banbury Road. Oxford
0X2 6ft
CUA

CUA User Group Adrian Waters. 9 Moss
Lane. Romford. Essex

6502

Bedfordshire 6502 User Group Walter
Wallenbom. 21 Argyll Avenue. Luton.
Bedfordshire LU3 1EG. 0582 26927
Hants. 6502 User Group (Southern
Region) Steve Cote. 70 Sydney Road.
Gosport. Hants

PCN JULY 28-AUUUST 3. 1983

DATABASICS

This six-page guide lists as many of the micros on the market for unde'
£12,000 as possible. In Databasics you'll find all the specifications for the
machines, add-ons and software necessary to make your buying decisions
PCN keeps you up to date in three-week cycles, starting with hardware,
then peripherals and finally software
PRICE Specifications listed for each machine indicate what you get for the
basic price quoted, which includes VAT

PROCESSOR TYPE a microprocessor is the heart of the computer TheZBO
and 6502 are popular 8-bit chips The 8088 and 68000 are common 1 6-bit
chips. If a machine has an 8-bit and a 1 6-bit processor we have listed the
16-bit only. Cust means custom-built

SPEED IN MHz Speed of the clock used to drive the microprocessor
measured in MegaHertz (million cycles per second).

STANDARD RAM Amount of mam memory used on the system. The
capacity is expressed in kilobytes

MAX RAM normally at extra coat Amount of memory to which the system
can be expanded

MAX CHARACTERS columns x lines The number of characters that can
be displayed across the screen and the number of lines down

METHOD (at extra cost) This indicates the way the computer displays
information M on its own means that a monitor is included in the basic price
Tv indicates that you can plug the computer into a television set (M-i-)
indicates that the monitor costs extra LCD Liquid crystal display
COLOUR CAPABILITY tells you whether the machine can give colour at the
basic price quoted

MAX DOT RESOLUTION gives the maximum number of points across the
screen by the number of points down the screen that are available for
graphics

KEYBOARD This tells you the type of keyboard that comes with the
machine W - word processing. C - calculator andT * touch-sensitive
No OF FUNCTION KEYS refers to the number of keys that can be used for
different jobs by different programs

NUMERIC PAD indicates whether the machine has a separate catculator-
styte group of number keys to enter data quickly
INTERFACES BUILT-IN shows the number of standard connections built
into the machine

CASSETTE FACILITY gives a yes or no as to whether or not the machine
can use a cassette to store data

CAPACITY PER DISK AND DISK SIZE tells you how many disk dnvescome
with the machine, and the amount of data in kilobytes (K) or megabytes (Mb)
that can be stored on each drive There are two sizes for disks. 5 V«" or 8", and
they can be floppy (F) or hard (H)

OPERATING SYSTEM gives the program that looks after the general
running of a computer

LANGUAGES INC is a column which lists the programming languages that
come with the machine at the basic price

OTHER LANGUAGES AVAILABLE indicates whether or not Other
programming languages are available for the machine
DISTRIBUTOR To find which company distributes the machine refer to the
distributor table from the code listed in this column. The table is at the end of
the listings, and gives the distributor s name and telephone number.

All details given are the latest available We ask distributors to let us know as
soon as machine specifications change so Databasics can be kept nght up to
date This guide has been meticulously researched and the information
collected from individual distnbutors listed

PRICE GUIDE

Sinclair ZX81
Casio PB 100
TRS-80PC4
Sharp PC1251

Casio FX702P
Juprter Ace
Sinclair Spectrum
Corn* 35

Tandy TRS-80 Pocket 2

Onci

Atari 400
TI-99 4A
Colour Game
Commodore VIC 20
Sharp PC 1500
SordMS
Dragon 32
Camputers Lynx
T anchi TRS-80 Colour
New Bram A
Multitech MPS II
BBC Micro Model A
Genie II
Alan 80C

BBC Micro Model B

C90
£99
£120
£130
£139 95
£150
£150
£150
£168
£170
£170
£190
£200
£225
£240
£269
£269
£299
£299
£300
£327
£330
£345
£389
£399
£431
£454
£472

_ £549

Sharp MZ80A £549

Commodore 40 16 £632

Research Machine 4802 £650

- £884

£776
£799
£883
£900
£972

Commodore 500
HP75C
Sharp M280B
Apple lie

Commodore 8032
Commodore 710

ToehOaT-100
SordM23
Kayproli
Transtec BC2
Kenilworth 83G

£1 900
£1.932
£1.949
£1.9 ■

>nQX10

Fu|itsu FM8
Sanyo MBC 1000

Positron 900 _

Tandy TRS-80 Model III £1.299

Commodore 8096 £1.374

Pasca640 £1437

NECPC8000 £1454

MneBuein* *

TeievideoTS
HP86A
Osborne I
Signet 10025
API Signet
Zenith 289-81
Basis 106 £1.683

CommodoreSpr Pet9000£i 719
Gemini Galaxy 2 £1.719

British Micro M.n. 803 £ 1 . 720

Microsokition Brit Genius £1.840

Globe 101 £1.850

Genie III £1.897

£1 259

£1.610

.. »T-20
TMK332
Bonsai SM 3000
CAL PC

Norlh Star Horizon
Sanyo MBC 1250
CasuM>mC2

Sharp I
HP 85

I System I
PPC3201

HP Series 100. 120

£2.012

£2.019

£2.064

£1 953
£1.983
£1.995

_ £1.986

Tandy TRS-80 Model II £1999

Kenilworth 83N -

Called Micro
LSIM3

Haywood 9000 Composite £2 064
Hawk Model 110 £2.070

Positron 9000 £2.134

Superbrain JR £2150

Future Computers FX-20 £2 156
Coman Communicator £2.180
Adler AlphatronicP2 £2 197
Country Com lersCOOOO £2.242
Kemitron K2000E £2.242

Rair Black Box 320S -

Sanyo MBC 2000

TIProl Computer
IBM PC

Xerox 820 Model II
Haywood 3000
LSM4

10 Tech Iona
HP87XM
Quantum 2000
Canon AS 100
CPlIOp

Enterprise 1000
Fact! 6520

Olympia Boss Model A

£2.242
£2.242
£2242
£2.242
£2 294
£2.294
£2 294
£2.294
£2.300
£2.300
£2 300
£2.360

Adler Alphalrorwc P3

Eagle II

AlmarcSOI

DEC Rainbow 100

ICL PC Model 10

MillbankSXIO

Olivetti M20D

Sirius l

Victor 9000

North Star Advantage

Applelll

Sanyo MBC 4050
Bonsai SM 4000
LogcaVTSViiess*
Decision- 1 Computer Oi 1

£2.362
£2.369
£2 386
£2 392
£2.415
£2 439
£2.472
£2.500
£2.524
£2 539
£2.571
£2.587
£2 633
£2.639
£2 600
£2.645
£2 645
£2.645
£2.657
£2 696
£2,702
£2.708
£2.714
£2.754
£2,754
£2.754
£2.754
£2.754
£2.766
£2.780
£2.817
£2 842
£2.863
£2,869

DMSFox
Eagle III
Zenith Z89-81
Monroe EC 8800
Philips P3500
TanbergECIO

Cromemco System 1
DECPC325
Direct 1000
Equator

Oerso Table-Tops 925
ITT 3030
Monroe OC 8810

£2.875
£2 950
£2.978
£2 990
£3 000
£3 000
£3 003
£3.025
£3 080
£3 093
£3 099
£3.105
£3.105
£3.162

HP Series 200 Moden 6A £3211 Micro Five

Crier Senes 1
Samurai
Torch
SordM223
KontronRSlBC
Columbia PC 1600- 1
D«g«o Prince
OEM Orion

£3.214
£3.214
£3.214
£3.277
£3.306
£3.392
£3 392
£3 392
£3.400
£3.450
£3.450
£3.560
£3.576

Bar cellos AMT 100
Kalamazoo 105C
Cromemco System 2
Digital Microsystems 3
Decision- 1 Computer 01 2 £3.674
TeievideoTS 1602-C £3.714

AddsMultivision £3.795

Clenio Pronto £3.795

Panasonic JD800M £3 795

Kemitron K3000 £3.795

DEC PC 350 £3.850

Vector 4 £3,852

Sage II £4.019

Eagle iv £4 190

C-1010 £4.197

Tandy TRS-80 Model 16 £4 199
HytechH4500 £4310

BMC OK 1 1 F800. Model20£4 360
ADS 42 £4.500

TeievtdeoTS-BQZH £4 533
Country Com iers Cl 000 £4.542
Corvus Concept £4.887

ICL PC Model 3i £4 939

Cromemco System 3 £5.170

Micro Five 1000 £5.175

Fortune 32 16 System 2 £5.204

Zeus4 £5.400

Hawk Model 21 10 £5.405

Molecular M200 £5.462

ANOS80015 £5.663

Durango F85 £5.744

Triton 4 £5.744

Mann Chip M9900 £5.750

SWTech Products SO 9 £5.750
BASF 7100 £5.805

Compustar £5.837

SordM243 £5.842

Archives IV £5.905

Sage IV £5.962

ICL PC Model 32 £6 037

Rair Business Computer £6.037
Digital Microsystems 4 £6,210

Superstar £6.296

Racal6000 £6.327

Eagle 1600
Tl System 200-250
Compucorp675
Weal 150

Pascal Mod
Diablo 3000
Onyx 5001V

®l;

£6.497
£6.695
£6 780
£6 846
£6 969
£7.003
£7,250
£7.607
£8,205
£9,550
£9 631
£9 775
£10.350
£10.480
£11.442

ABBREVIATIONS
Ap APL
As Assembly
Ba Basic
CoCobol
Cm Comal
Ft: Forth
Fn: Fortran
Pa Pascal

§

|

_2

■

| mtelacn bu-nm j

f

1

l

2|

Si

Si

!

B

|

7]

f

1

L

1

B

I

\}\

,

i

2

ftl

li

HARDWARE

Acorn Atom

£150

6502

•

2K

40K

32x16

Tv(M + )

•

256x192

w

i

•

Cassette

BaAs

•

A1

Hobbyist micro

Adds Multrvision

£3.795

8085A

5

64K

256K

80x25

M

640 x 240

w

28

i

7

1x350K5'/4F

CP M2 2. Muon

Ba

A2

Multi user system

Adler Alphatromc P2

£2.197

000 5 A

3

48K

64K

80x24

M

w

6

•

2

j]

7

2x 160K5' <F

CP M

Ba

T1

Good software choice

Adler Alphatromc P2U

£2.524

8085A

3

64K

80x24

M

W

6

•

2

7

3

2x320K5’/«F

CP M

Ba

T1

£327 buys extra storage

Adler Alphatromc P3

£2,696

8065A

3

64K

80x24

M

w

6

•

.2

.

1

3

2x 790K5’/4F

CP M

T1

1 6 bit option-promised

ADS 42

£4.500

0085 A

4

32K

40x8

M

40«8

wl

•

3

3

T

1x02K5’4F

Holland Automation

Ba

A3

Intelligent cash register

£3.400

8080

4

256K

80x25

M

640 x 250

w

10

•

1

1

7]

2x320K5’/4F

MS-DOS

BaAs

A9

1 6-bit portable micro

Almarc 801

£2.700

Z80

4

64K

512K

80x25

(Mi)

•

w1

J ^

7

2 « BOOKS’ *F

CP M

A4

8-txt range goes to 20Mb

Almarc 1601

£3.445

8006

8

128K

1Mb

80x25

(M + )

•

w1

2

ii

2x800K5V4F

CPM86

A4

Pseudo 16- bits go to 20Mb

Aquarius

C90

Z80A

4

4K

52K

40x24

TV

•

320x192

c

i

•

Cassette

Ba

M7

Competition lor Uncle Sir Clive

Altos 00015

£5.663

ZOO

4

192K

208K

80x24

M

w

8

7

.

1x450K5V4F

MPM

LI

Multi user business machine

Alios 856-10

£9.631

8086

10

512K

1Mb

80x24

M

w1

16

7

2x500K5’/4F

Xenix

Xenix

LI

The 16-bit version

APL Signet

£1,610

Z80A

4

64K

80x25

Tv(M*)*

•

2^

2x 188K5’ «F

APL. CPM

Ap

Ml

•APL terminal recommended

Apple II

£776

6502

1

48K

128K

40x24

Tv(M-)

•

256*192

w

7

T

CP M. DOS 3 3. UCSD-P

Ba

A8

Plenty of software and extras

Apple lie

£972

6502

64K

128K

80x24

M +

•

w

7

7

DOS

Ba

A8

Not an Apple III

Apple III

£2.780

6502

2

128K

256K

80x24

(M + )

•

560x192

w

T

4

1 x 140K5’ xF

SOS. DOS

A8

Will emulate Apple II

Apple Lisa

£9.775

68000

8

1Mb

120x30

M

792 x 360

w

•

2

7

7

2x860K5’/4F

Lisa

A8

Learning lime 30 mins

Archives 1

£3.003

ao

4

64K

80x25

M

•

240x100

23

•

2

i

7

5^

2x386K5'4F

CPM

SI

Standard CPM * graphics

Archives IV

£5.905

280

4

512K

80x2S

M

•

240x100

w

23

•

1

i

7

1x10Mb5V.H+1x7445V.F

CPM. MPM

SI

Hard disk version

Atari 400

£150

65026

1 79

16K

40x24

Tv

•

320x192

T

3

7

•

Cassette

Ba

A5

Games computer Basic extra

Atari 000

£300

6602

1 8

48 K

40x24

Tv(M+)

•

320x192

w'

3

7

7

Cassette

Ba

A5

Versatile, good graphics

Bar cellos AMT 100

£3.450

ZBOA

4

64K

256K

80x24

TvM

*r

8

•

~i~

T

2

7

2 » 500K8F

CPM

BaCo

•

Bl

Up to lour users

BASF 7100

£5.005

Z80A

4

64K

80x24

M

w

26

•

i

i

3x 163K5' <F

BOS

Ba

Cl

Hard disc promised

Basis 100

£1.683

6502

1

64K

126K

80x24

TvM

•

820x168

w1

15

•

i

i

7

•

C12

Apple bus. Z80 80 columns

BBC Micro Model A

£299

6602

1 8

16K

32K

40x30

Tv(M ♦ )

•

320 x 256

7

JIO

—

7

MOS

BaAs

A1

Upgradable to Model B

BBC Micro Model B

£399

6502

2

32K

80x30

Tv(M-)

•

640 x 256

w

JJ

5

7

•

MOS

BaAs

A1

Versatile and expandable

BMC OKI it BOO. Model 20

£4.360

Z80B

5

64K

256K

80x25

M

•

640 x 200

w

15

•

7

•

2x 340K5’/4F

CPM

Ba

El

Built-in printer

Bonsai SM 3000

£2.294

280

2

64K

80x24

M

80x24

w

"m

•

T|

2 x 350K5V.F

CPM

B2

CP M business machine

Bonsai SM 4000

£2.842

8086

5

128K

256K

80 «24

M

w

14

•

1

i

CPM. MPM. MS-DOS

B2

Z80 for 8 bit software

Britannia Baby

£2,657

8086

6 14

64K

80x25

Tv(Mx)

80x25

w

11

•

2^

i

2 « 500K5’ iF

CPM

AsBaCo

B3

Cobol language included

British Micro Mirm 803

£1.720

ZBOA

4

64K

80x25

(M + )

512x256

w

17

•

1

i

7

2x400K5’/4F

OSM

B4

This is CP V compatible

C-1010

£4.197

6602

1

64K

128K

80x24

TvM

256x192

w

2£

•

1

7

1

7

•

1 x 1 405’ xF + 1x1 OMbH

CP M. DOS. UCSD-P

Bh

C2

Apple II compatible

CAL PC

£2.294

8088

5

128K

256K

80x25

TvM

7

256 x 512

w

•

2

7

1

5

2x400K5’ xF

CPM

Ba

C3

Also Z806 Processor

Caltext Micro

£2.019

Z80A

4

64K

256K

00x24

TvM

w

se

■*

1

7

J

2x400K5V«F

CPM

C3

Flange of software included

Computers Lynx

£225

ZBOA

4

48K

192K

40x24

Tv(M + )

•

248x256

w

1

i

7

Cassette

Ba

C5

Unusual — promise of CP M

Canon AS1 00

£2.633

8068 |

4

128K

512K

80x25

M

•

640x400

w

TF

j

7

2x640K5’/4F

C4

Choice of CP M86 or MS-DOS

Canon CX-1

£2.500

6809

4

128K

256K

80x24

M

80x25

w

15

7

~3~

i

7

2

2 x 320K5%F

MCX

BaAs

C4

Pascal. Fortran as extras

Casio FX 702P

£90

Oust

2K

20x1

LCD

•

Cassette

Ba

C6

Pocket computer

Casio PB 100

£50

Cost

07K

1 7K

60x1

LCD

fi

•

7

•

: assetie

Ba

C6

Business pocket computer

Casu Mini C2

£2.300

ZBOA

4

64K

(M+)

T

7

6

2 * 1 Mb8F

C7

‘Choose your own terminal

Citer Series 1

£3.214

ZOO

4

128K

320K

132*32

TvM

w

4tT

•

3

i

2x0OOK5’/4F

CPM

'

C17

Other models available

Clenlo Pronto

£3.795

ZBOA

4

64K

'Ml-

Tv(M + )

2

2

Ji

2x6OOK0F

CPM

Ba

ce

•Choice of terminal

Clenlo Table-Top 925

£3.105

ZBOA

4

64K

128K

80x25

M

w

TT

•

2

2

2x 800K8F

CPM

C8

Watch out lor the weight

Columbia PC 1600-1

£3.392

8068

4 77

128K

1Mb

80x24

M

•

640x200

w

10

•

2

1

7

2X 320K5V.F

CP M. MS-DOS

hr~

11

An IBM lookalike

Commodore VIC 20

£170

6602

»

~5K|

32K

22x23

Tv(M ♦ )

7

176x158

w_

8

7

i

7

Kemal

C9

Very popular home micro

Commodore 64

E345

6510

1

64K

40x25

Tv(M + )

•

320 x 200

W

8

3

•

Kernel

Ba

•

C9

Good value lor money

Commodore 500

E799

6509

1

128K

B96K

40x25

Tv(M-)

•

320x 200

w

10

•

1

1

3

1

•

Kernel

Ba

•

C9

Available by summer?

Commodore 401 6

£632

6502

1

16K

32K

40x25

TvM

w

•

1

1

3

•

Cassette. PETDOS

Ba

•

C9

The original PET

Commodore 710

El. 144

6509

2

128K

896K

80x25

TvM

w

10

•

1

1

2

1

•

Kemal

Ba

•

C9

Might be a long wait

Commodore 0032

El, 129

6502

1

32K

96K

80x25

TvM

w

•

1

1

•

Cassette. PETDOS

Ba

•

C9

The 80-column PET

Commodore 8096

El. 374

6502

1

96K

80x25

TvM

w

•

1

1

•

Cassette. PETDOS

Ba

•

C9

Fully expanded PET

Commodore Super Pet 9000

El. 719

6502

2

96K

80x25

TvM

w

•

1

1

1

2

•

Cassette PETDOS

Ba

•

C9

Top ot the range

Compucorp 675

£6.780

Z80

4

64K

256K

80x20

M

w

20

•

1

4

2x 655KSV*F

Compucorp

•

CIO

Unusual O S

Compuster

£5.837

Z80A

4

64K

80x25

M

w

•

2

1x10MD8H*1x350K5%f

CPM

Ba

•

no

N^twocKing system

Comart Communicator CPI 00

£2.180

Z80

4

64K

512K

80x24

M

w

•

2

1

10

2x390K5%F

CPM

•

C13

Business CP M micro

Comx 35

£120

1802

35K

67K

40x24

Tv

•

c

•

Cassette

Ba

C14

Built-in joystick

Cortex

£454

9995

12

64K

1Mb

40x24

Tv(M-r)

•

256x192

w

12

•

1

•

BaAs

M2

Mainly sold as £340 tut

Corvus Concept

£4.887

68000

8

256K

1Mb

120x60

M

720x560

w

10

•

2

1

4

Merlin

Pa

•

K1

A4 shaped screen

Country Computers Cl 000

£4.542

6502

1

64K

128K

80x24

M

280x192

w

12

•

1

3

1 x 10MbSV4t +• 1 x 140K5' if

DOS. CPM

Ba

C1I

Runs al Apple software

Country Computers C3000

£2.242

Z80A

4

64K

256K

1

1

1 x 5Mb5 V<H ♦ 1 x 500K5 V«F

CPM

•

C16

'Terminal own choice

CP1 100

£2.639

8086

6

128K

1Mb

(M+)*

2

1

7

2x 390K5’/.F

CPM 86

•

CIS

Choose your own terminal

Cromemco System 1

£3.025

ZBO

4

64K

80x24

(M + )

•

450 x 735

w

20

•

1

8

2x 390K5%F

COOS.Crom

•

C13

Designed lor business

Cromemco System 2

£3.560

zoo

4

64K

80x25

<M+)

w

20

•

1

21

2x 390K5V«F

COOS.Crom

•

C13

Large business machine

Cromemco System 3

£5.170

zoo

4

64K

80x25

(M + )

w

20

•

21

2*1 2Mb8F

COOS.Crom

•

C13

Top end Cromec

DAI PC

£684

8080

2

48K

60x24

Tv(M+)

•

255 x 335

w

1

•

Cassette

Ba

09

Optional maths chip

Datac Micro Controller

£431

ZBO

2

16K

40x24

Tv(M + )

80x60

w

1

1

1

•

Ba

•

D1

Mainly used in labs

DEC Rainbow 100

£2.714

8088

NA

64K

192K

132x24

M

•

960 x 240

w

20

•

2

3

2x400K5V„F

CPM

•

D2

Competitor tor IBM PC

DEC PC 325

£3.000

PDP1123

N A

256K

132x24

M

•

960 x 240

w

20

•

2

1

2X400K5V.F

P'06

•

02

Mini in micro clothing

DEC PC 350

£3.850

PDP1123

NA

256K

132x24

M

•

960 x 240

w

20

•

2

4

2x400K5’/«F

POS

•

D2

Mini in micro clothing

Decision-1 Computer MDC-01 1

C2.869

Z80A

4

64K

192K

(M+r

3

1

1

2x400K5V«F

CPM

Ba

•

12

'Buy your own terminal

Decision-1 Computer MDC-01 2

£3,674

Z80A

4

64K

192K

(M+r

3

1

1

1 x 400K5' <F ♦ 1 x 5Mb5 ViH

CPM

Ba

•

12

•You choose the terminal

Diablo 3000

£7.250

8085

3

32K

64K

80x24

M

w

8

•

1

4

2*1 8Mb8F

DACL

Ba

•

B5

Unusual O S

Digico Prince

£3.392

Z80A

4

64K

80x25

M

w

50

•

2

7

2x400K5V«F

CPM

•

D3

Unusual keyboard

Digital Microsystems DMS-3

£3.576

Z80A

4

64K

<m«t

3

1

2x512KSF

CPM

•

D4

•Choice of terminal

Digital Microsystems DMS-4

£6.210

Z80A

4

128K

’»Mb

iM+r

4

2x512K8F

MPM

•

D4

‘Depends on terminal chosen

Direct 1000

£3.093

ZBO

4

64K

80x25

M

132x28

w

2

2x300K5’/«F

CPM

•

D5

Standard CP M machine

DMSFox

£2.875

Z80A

4

64K

80x24

M

w

16

•

3

1

1

1 2Mb5’/4F

CPM

•

D4

Portable machine

Dragon 32

£200

6809E

1

32K

64K

32x16

Tv(M-)

•

256x192

w

1

4

1

•

Cassette

Ba

D6

T andy colour tookakke

Durango F85

£5.744

8085A

5

64K

196K

80x64

Tv<M + )

w

•

4

1

12

2x lMb5’ »F

Star Basic

BaCo

•

C3

BuMt in printer

Eagle II

£2,702

Z80A

4

64K

80x24

M

80x24

w

•

2

1

1

2x500K5'/*F

CPM

Ba

•

M3

Includes WP SS software

Eagle HI

£2,950

Z80A

4

64K

80x24

M

80x24

w

•

1

2x1Mb6V«F

CPM

Ba

•

M3

Includes WPSS software

Eagle IV

£4,190

Z80A

4

64K

80x24

M

w

•

2

1

1

1x1Mb5’/.F-1x12 5Mb5ViH

CPM

Ba

•

M3

Includes WPSS software

Eagle 1600

£6.497

8086

8

128K

512K

80x25

M

•

720x352

w

24

•

2

1

1

8

1 x 1 Mb5 ViF +1x12 SMt>5 V4f

MS-DOS. CPM 86

•

M3

High speed IBM copy

Enterprise 1000

£2,645

8

64K

M

w

10

•

2

2

2 x 358K5’/.F

Enterprise

•

D7

Micro Nova 16-M

Epson HX20

£472

6301

1

16K

32K

20x4

ICO

120x32

w

13

•

2

2

•

Cassette

Ba

E2

Powerful portable

Epson 0X10

£1.995

Z80

4

192K

256K

80x25

M

640x400

w

18

•

1

1

5

2 * 320K5’ «F

CPM

Ba

•

E2

Expansion required tor Valdocs

Equator

£8.842

Z80A

4

64 K

448K

80x24

M

255x560

w

14

•

7

1

1

8

1 x5Mb5'/«F ♦ 1 x750K5'/iF

CP M. MP M, Turbo DOS

•

E3

Two bigger models available

Factt 6520

£2.645

ZBO

4

64 K

128K

80x24

M

80x24

w

8

•

2

2 x 320K5’ *F

CPM, Face DOS

Ba

•

FI

Concurrent printing

Fortune 32:16 System 2

£5.204

68000

6

256K

1Mb

80x24

M

•

1024x1024

w

16

•

1

20

2*800K5'*F

Unix

•

13

Genuine 16-bit

Fujitsu FM8

£1.150

6809

1

64K

80x25

(M + )

•

640*200

w

10

•

1

1

4

1

•

Flex

Ba

S2

Good for business graphics

Future Computers FX-20

£2.156

8088

8

1 28K

1Mb

80x25

M

800*400

w

20

•

2

2

2x800K5'/4F

CPM 86. MS-DOS

•

El

Still on a promise

Genie 1

£330

ZOO

1.7

16K

46K

64x16

Tv(M + )

128*48

w

1

t

1

•

Cassette

Ba

•

12

Compatible wilhTRS 861

Genie II

£299

ZBO

1.7

16K

48K

64x16

TvtMi)

128*48

w

4

•

1

1

•

Cassette

Ba

•

12

Speed ed-up Game 1

Genie Ml

£1.897

Z80A

32

64K

80x24

M

160x72

w

8

•

1

1

1

3

2x 700KS'/4F

New DOS

Ba

•

L2

CP M costs extra

Colour Genie

£168

ZBO

2.2

32K

40x24

Tv(M + )

•

160x96

w

6

1

1

2

1

•

Cassette

Ba

L2

Home games machine

Gemini Galaxy 2

£1.719

ZBO

4

64K

512K

80x25

M

160x75

w

10

•

1

1

1

5

•

2x400K5’/4F

CPM

•

G1

Low cost British system

Globe 101

£1.850

8065

3

64K

80x24

M

w

20

•

3

2x 325K5'/.F

CPM

•

G4

Wordstar plus Mail Merge me

Hawk Model 1 1 0

£2.070

Z80A

4

64K

256K

(M+)*

•

2

1

3

2x 390K5'/4F

CP M. MP M2

•

L6

‘Choose your terminal

Hawk Model 21 10

£5.405

Z80A

4

64K

2S6K

(M+r

•

2

1

3

1 x390K5’/4F+ 1 *2iMbH

CP M. MP M2

•

L6

‘Choose your terminal

Haywood 9000 Composite

£2.064

Z80A

4

64K

192K

80x25

M

.

64 x 255

w

34

•

2

8

2 * 320K5' *F

CPM

As

•

HI

Designed for network

\

£ ?

If

ii

f

-

555

| IntsrtKts bwltn |

r~ ~ — i

h

1

1

1

i

i

1

£

i

f|

H

ii

i

JL

f

5|

il

1

©

i

i

I

PI

>i

O

|

D

1

!

i

|

3

•

\

%

3

£

S

I

Is

M

h

HARDWARE !

Haywood Hmet

CIO, 982

zoo

4

64K

128K

80«24

M

w

□

□

_3_

1

'

1x11Mb8H

CPM

HI

Large network machine

HP 75C

C863

Cust

NA

16K

24K

32x1

(Mi)

c

1

4

•

1 3K card reader

HP

Ba

H2

Calculator computer

HP 85

£2 360

Cust

NA

16K

32K

32x20

M

255x191

w

8

•

T

4

4

•

Cassene

Ba

H2

Engineers machine

HP86A

Cl .541

Cust

NA

64K

512K

80x24

M

544 x 240

w

i

T

2

4

HP

Ba

•

H2

CP M optional

HP 87XM

C2.571

Cust

NA

128K

640K

80x24

M

544 x 240

w

14

i

i

1

3

4

HP DOS

Ba

•

H2

Special technical uses

HP Seoes 100. 120

£2 362

Z80A

368

64K

80x24

M

80x24

w

0

2

1

CPM

Ba

H2

Top end HP business system

HP Series 200 Model 16A

C3.212

68000

0

128K

750K

80*25

M

w

5

1

T

T

HP

H2

Genuine 16-brt

Hytech H4500

C4.310

Z80

4

64K

208K

80x25

M

80x25

w

26

1

3

2*403K5%F

CPM

Ba

H3

Standard CP M micro

IBM PC

£2. 392

0088

47

64K

576K

80x25

(M+)

•

640x200

w

10

T

5

1 *360K5%F

MS-DOS

Ba

19

Slow but reliable

ICL PC Model 10

£2.754

0065

3

64K

256K

80x24

Tv(M + )

w

11

T

8

2* 700K5%F

CPM

Ba

Repackaged Ran Black Box

ICL PC Model 31

£4.939

8085

3

128K

256K

80x24

<M»)

80x24

w

11

4

8

1 x 2S0K5V*F ♦ 1 x 5MbH

CP M. MP M

Ba

14

Multi user Black box

ICL PC Model 32

C6.037

8085

3

256K

80x24

<M + )

80x24

w

11

0

8

1x250K5'/4F+1x5MbH

CPM. MP M

Ba

14

Topol ICL range

IOS Datamachine

Cl .995

Z80

4

64K

1Mb

Tv(M + )

2

15

2*400K5V«F

CPM

Ba

18

•Depends on terminal

lOTech Iona

£2,539

Z80

4

69K

960K

80x24

M

•

160x75

w

12

1

T

0^

•

2*400K5’.F

CPM

15

Good colour versatility

Irvine Business Systems

£1.489

ZOO

4

64K

80x25

M

w

2^

2x400K5v«F

CPM

16

Inexpensive CP M machine

ITT 3030

£3.105

Z80A

4

64K

256K

80x24

Tv(M • )

80x24

w

8

1

1

T

2x280K5'4F

CPM. BOS

17

Top end business system

Jupiter Ace

£90

ZOO

325

3K

51K

32x24

Tv(M» )

64x46

c

i

•

Fr

J1

Native Forth machine

Kalamazoo 1050

£3.450

8085

6

64K

80x24

Tv(M»)

80x24

w

To"

T

2x250K5’/4F

Kalamazoo

K3

Only Kabot language

Kayproll

£1.949

ZOO

4

64K

80x24

M

w

i

T

2x200K5’/4F

CPM

Ba

C15

A portable business machine

Kemitron K2000E

£2.242

zoo

4

64K

80x24

(M + )

80x24

w"

2

i

ii

1*300K5-4F

CPM

K4

Scientific Keyboard

Kemilron K3000

£3.795

zoo

4

64K

256K

80x24

(M + )

80x24

w

2

14

2* lMb8F

CP M. MP M

K4

For scientific use

Kenilworth 83G

£1.953

Z80A

4

64K

80x25

TvM

160x75

w

1?

1

T

5

2 x 350K5.F

CPM

K5

British portable

Kenilworth 83N

£2.012

ZOO

4

64K

80x25

TvM

160x75

w

10

1

T

T

2 * 350K5’ *F

CPM

Ba

K5

Includes Basic

Kontron RSI 00

£3.306

ZOO

4

64K

128K

80x25

M

256x512

w

16

2

i

2x303K5’/4F

Kontron

Ba

K6

OS CPM based

LSI M3

£2.064

ZOO

25

64K

80x24

M

80x24

v\T

1

i

2x200K5’/4F

CPM

L3

Big British and CPM

LSIM4

£2,472

0088

5

128K

256K

80x24

M

160x72

w

31

2

i

T

2x400K5’4F

CP M 86. CP M80

L3

ZOO for 8-brt software

Logics VTS Vitesse

£2.863

0086

5

64K

2S6K

80x24

M

•

640 x 288

12

1

i

4

2*1Mb5’.F

CPM. MS-DOS

Ba

L4

High-res colour graphics

Mann Ch*) M9900

£5.750

9900

3

64K

i 6Mb

24x80

M

24x80

8

4

ii

2*1 2Mb8F

MOS. MDEX

Ba

M2

Genuine 16-bit

Micro Five 1000

£5.175

0088

8

128K

51 2K

25x80

TvM

512x512

w

20

10

2

2 x 1 Mb5’ *f *2x6 3Mb5’ *H

F2

•Choose your own 0 S

Micro Five 3000

£10.350

0086

5

128K

1Mb

25x80

TvM

512x512

w"

20

5

3

•

1 * 10Mb8F

F2

‘Choose your own O S

Mtcrodedsion

£1.144

Z80

4

64K

80x24

(M + )

2

1 * 200K5V.F

CPM

Ba. Pilot

12

•Terminal extra

Microsolulion British Genius

£1.840

ZOO

4

64K

80x24

TvM

80x24

w'

2\

1

T|

2x160K5’/4F

CPM

M4

Genius by nature7

Microtan 65

£389

6502

1

8K

48K

25x64

(TvM-r)

w

1

2

•

Tanbug

Ba

M8

Expandable in many ways

Millbanh SX10

£2.754

Z80A

4

65K

256K

80x25

M

80x25

w

"io"

2

~

2x 350K5’/4F

CPM

As

M5

Scientific applications

Molecular M200

£5.462

Z80

4

64K

320K

(M+r

2

1

Te

1 x lOMbSH + l * 5O0K8F

CPM

* BaAs ~

*

G2

•Terminal required

Monroe EC8800

£2.990

Z80A

3

128K

40x24

M

240x240

w

32

3

3

1 x320K5’4F

Monroe

Ba Pa Pi lot

F3

Only 40-character screen

Monroe OC88 10

£3.162

Z80A

3

128K

80x24

M

80x24

vV

3^

2

T

1 *320K5’ 4F

Monroe

BaPa

F3

Bigger model available

Muhrtech MPFII

£269

6502

12

64K

40x24

Tv(M + )

•

280x192

T

1

i

•

Cassette

Ba '

S8

Apple soft compatible

Nascom 2

£327

Z80A

4

2K

64K

16x48

Tv(M + )

48*96

w

~T

4

•

NAS SYS

BaAs

L5

Old reliable

Nascom 3

£549

ZOO

4

48K

16x48

Tv(M + )

48x96

w

1

4

•

NAS. SYS

BaAs

L5

Fully expanded Nascom

NEC PC8000

£1.454

ZOO

4

32K

64K

80x25

M

[•

160x100

w

10

•

2

~T

2 * 300K5%F

CP M NEC. DOS

Ba

N1

Superb colour graphics

New Brain A

£269

Z80A

4

32K

512K

60x30

Tv(M * )

640 * 220

c

2

T

•

Cassette

Ba

G3

A lot of promise

North Star Advantage

£2.766

ZOO

4

64K

80x24

M

640 * 240

w

7?

1

6

2 x 360K5’.F

CPM

T9

16-bit option

North Star Horizon

£2.294

ZOO

4

64K

512K

2

T

T

9

2x360K5’.F

North Star DOS

Ba

T9

•Choose your own terminal

OEM Orion

£3.392

8086

8

128K

896K

80x25

TvM

800*400

w

7T

•

_n

_6_

2x500K5’/4F

CPM 86

BaCo

05

•Full communications machine

Olivetti M20D

£2,754

Z8000

3

160K

512K

80x25

M

•

512x256

W

•

1

,

5

2x 320K5'/*F

PCOS

Ba

B6

Real 16-bitler

Olympia Boss Model A

£2,645

Z80A

4

64K

80x28

M

•

80x28

w

10

•

1

4

2X140K5V.F

CPM

01

Useful 28 lines on screen

£7.607

Z80A

4

128K

256K

5

1

•

1 x 7Mb5' iH

CPM

Ba

T2

"Terminal extra; other models

£139 95

6502A

1

48K

40x28

Tv(M + )

•

240x200

c

1

i

•

Cassette

Ba

02

16K promised

£1.561

ZOO

4

64K

52x24

M

128x32

w

10

•

1

i

2x ISSKSViF

CPM

Ba

03

Portable, includes software

£3.795

0O85A

4

60K

80x24

M

80x24

w

21

•

3

2 * 250K8F

CPM

Ba

PI

Larger model costs £5.002

£1.437

Z80A

4

64K

80x24

M

w

•

1

1

2x2S0K8F

CPM

W1

Regular CP M micro

Pascal Modular Microengine

£7.003

WD9000

2

128K

4

8

2x1 2Mb6F

UCSD-P

Pa

P2

"Terminal extra

£3.000

Z60A

4

64K

320K

80x25

M

w

11

•

2

2x0 6Mb5' «F

Turbo-DOS

Co

P3

Fast O S as standard

Positron 900

£1.259

1

64K

2S8K

(M+)

4

i

3

OS 9

Ba

P4

"You choose your terminal

Positron 9000

£2,134

1

64K

256K

80x24

TvM

•

480 x 240

w

12

•

4

i

3

OS 9

Ba

P4

Multi user version

£2.587

Z80A

4

64K

192K

80x25

M

160x75

w

18

•

1

1

5

•

3x860K5V«F

CPM

Q1

Mono, tow-res graphics

Rair Black Box Modal 320S

£2.242

0005

5

64K

512K

80x24

(M»)

2

8

2x 1Mb5V«F

CPM

Ba

R1

"VDU extra, many versions

Racal 6000

£6,327

Z80

S

64K

256K

80x26

M

80x26

W

21

•

,

1

1 x 19Mb5'/iH + 1 x 1 Mb5' <F

1 * 600K8F

CPM, PC DOS

CPM

Ba

R2

Hybrid 8 16 bit

CP M languages available

Research Machines 380Z

£2,147

Z80A

4

32K

56K

40x24

Tv(M + )

w

1

1

4

•

2x144K5V«F

CPM

Ba

R3

Widely used in schools

Sage II

£4,019

68000

8

512K

(M + )

•

2

T

T

-

—

•

2X640K5V.F

Cassette

UCSD-P System

Ba

BaAsPaFn

R3

T10

CP Net version available
"Terminal extra

Sage IV

£5.962

8

128K

iMb

(M + >

•

6

i

i

2 x 640K5F + 1 x 6MbH5 <

UCSD-P System

Paftafn

T10

"Terminal own choice

Samurai

£3.214

0006

46

128K

768K

80x25

M

•

720x400

w

•

3

i

3

2x1 2Mb8F

MS DOS. CPM 86

M6

Fhgh-res colour graphics

Sanyo MBC 1000

£1.195

Z0OA

4

64K

80x25

M

80x25

w

17

•

1

1

1x320K5V.F

CPM

Ba

LI

Stwidard CP M model

Sanyo MBC 1250

£2.294

Z80

4

64K

80x40

M

640 x 400

w

•

1

i

2x 640K5V«F

CPM

Ba

LI

High-res graphics

£2.242

0O85A

5

64 K

80x24

M

80x24

w

24

•

2

1

2

2x 328K5'/4F

CPM

Ba

LI

Big disc model costs £3.622

Seed System 1

£2.300

6600

2

32K

64K

80x24

M

80x24

w

3

•

2

±

8

2x640K5ViF

2x 160K5' iF

CPM 86

DOS 68 Flex

Ba

Ba

LI

S3

Pseudo 16-brt

Ageing business machine

Seed System 19

£2.600

2

40K

1Mb

80x24

M

w

3

•

2

8

2x I6OK5V4F

OS-9

S3

Latest from Seed

Sharp MZ80A

Sharp MZ806

£549

£900

Z0O

Z60A

2

4

48K

64K

40x25

M

80x50

w

•

•

Sharp Basic

Ba

S4

CP M facility extra

Sharp PC1251

£79 95

Cust

58

4 2K

LCD

24x1

c

10

•

1

•

Sharp Basic

Ba

S4

S4

Unusual keyboard

Pocket computer

Sharp PC 1500

£170

Cust

13

3 5K

11 5K

26x1

LCD

156x7

c

6

•

1

i

2

•

Cassette

Ba

S4

Optional 4-pen plotter

Sharp PC3201

£2,300

Z80A

26

64K

1 12K

80x25

M

160x50

w

1°l

•

5

2 x 500K5’/4F

Sharp Basic

Ba

S4

Powerful Sharp Basic

Signet 10025

£1.599

ZB 0B

6

64K

80x24

M

•

512x512

w

•

2

i

1

2x200K5V!iF

CPM. Macnos

A6

Choice of keyboards

Sinclair ZX81

£40

Z80A

35

IK

16K

32x24

Tv

64x44

c

1

•

Cassette

Ba

S5

Sold a million

Sinclair Spectrum

£99

Z60A

35

16K

48K

32x24

Tv

•

256x192

c

1

•

Cassette

Ba

S5

Very popular home micro

Sirius 1

£2.754

8068

5

128K

896K

80x25

M

800 x 400

w

7

•

2

1

4

2x600K5’/4F

CP M 86. MS DOS

Ba

A7

IBM style

SordM5

£190

4

4K

16K

40x24

Tv(M + )

•

256x196

c

i

2

•

Cassette

Ba

S6

Japanese home computer

Sord M23

£1.932

Z80A

4

128K

80x25

M

•

w

14

•

2

1

2

3

2 x 330K5'/.F

Sord O S. S880

BaPips

S6

CP M compatible

Sord M23P

£2.369

Z80A

4

128K

80x25

Tv(M + )

•

640x 200

w

14

•

2

i

2

2

2x290K3'*F

Sord O^S. SB80

BaPips

S6

Complete with suitcase

Sord M223

£3.277

Z80

4

64K

80x25

M

w

•

2

4

2x 350K5V.F

Sord O S. SB80

BaPips

S6

Standard business machine

Sord M243

£5.642

Z80

4

80x25

M

•

640x400

w

15

•

4

i

4

2xiMb8F

Sord O S. SB80

BaPips

S6

Large and powerful

SW Technical Products S09

£5.750

6809

2

256K

1 2Mb

80x24

M

w

15

•

1

i

2x1 5Mb5'/iF

Flex. Uniflex

S7

Topend SWTP

£11.442

8

2S6K

4Mb

(M + )

4

16

2x720K5’/4F

Mirage

Ap

Ml

"As terminal

Sundance 1

Sundance II

£6,969

Z80A

Z80A

4

64K

256K

132x24

M

w

4

•

1

1

•

1 x 7Mb5V.H

CPM

Ba

T2

Ordinary CP M machine

Sundance 16

£10.480

Z8001

6

256K

1Mb

80x24

M

w

•

5

,

•

- r><17n!^r-<M -

BOS

Ba

T2

T2

Middle-range Sundance

T ape backup for hard disc

Superbrain JR

£2.150

ZOO

4

64K

80x24

M

560 x 240

w

•

2

1

2x160K5’/«F

CPM

Ba

110

Bigger models available

Superstar

£6.296

ZOO

4

64K

80x24

Tv(M+)

80x24

1

i

8

1 x 10Mb5VliH +1 x 400K5 ' <F

CPM 80

Ba

B7

Includes hard disk

TandbergECtO

£3.000

0O0OA

2

64K

80x25

M

w

•

7

1 *250K8F

CPM, TOS

Ba

T3

Very earty machine

Tandy TRS-00 Model II

£1.999

Z80A

4

64K

2S6K

80x24

M

80x24

w

2

•

2

i

1 x500K8F

TRS-DOS

Ba

T4

Big business machine

Tandy TRS-60 Model III

Tandy TRS-00 Model 16

£1.299

£4,199

Z0OA

68000

2

8

48K

128K

512K

64x16

80x24

M

126x48

w

•

1

1

1

•

2x184K5'/«F

TRS-DOS

Ba

T4

Latest TRS80

Tandy TRS-60 Colour Computer

£240

6809E

16K

32K

32x16

Tv

•

256x192

w

1

•

TRS-DOS

Ba

T4

True 16-bit

Very popular

Tandy TRS-00 PC-4

£50

Cust

NA

'/>K

IV*

12x1

LCD

12x1

c

9

•

1

1

Cassettf

Ba

T4

Low-cost pocket computer

Tandy TRS-60 Pocket Computer 2

£130

Cust

13

26K

16K

26x1

LCD

156x7

c

6

•

•

Cassette

Ba

T4

Plotter available

Tetevideo TS-60ZH

£4,533

ZOO

4

64K

80x24

M

80x24

w

15

•

2

1

1x256K5'/*Fr1x7Mb5’.H

CPM

C11

Recently upgraded

Mila am) node!

Pnct

me VAT

Is

If

ft

I

II

Otetoy

Guplxcs

Keyboard

I inttrtMn burt-m |

Sloiagt

X

Ll

I

I

1

jl

i

If

I

I

Jl

SI

1 B

! S

I

3

I

1

1

!

I

f

i

ft!

11

i

AR

E

vm

|

64K

■

90-24

80*24

1

IB

D

n

mi

Standard CP M machine

Tetevkteo TS 1602-C

E3.714

£2.386

8088

8088

5

5

128K

64K

256K

256K

80x24

80x25

M

M

-

576x424

w

w

9 2

9

1

-

-

-

2 x 256K5’/.F

1 x320K5V*F

CPV-86

—

□

□

C11

T5

Graphics, but no colour

Cho*e of operating systems

Texas Instruments TI-99 4A

El 50

9900

35

16K

52K

32x24

Tv(M+)

T

256x192

w

T

•

DOS

Ba

u

T5

This has sprite graphics

T1 System 200-250

£6.695

9900

4

64K

80x24

M

.

80x24

w

|T

_

_

_

_

_

1x5Mb6’.H

UCSD-P, PX10

Ba

u

□

T5

Bigger version available

*6502 IO processor

Torch

E3.214

Z80*

4/2

96K

80x30

TvM

V

640x256

9 T

T

—

T

—

T

2x400K5’/*F

CPN

Ba

□

T8

CPMcompattote

Toshiba T- 100

Cl. 900

Z80A

4

64K

96K

80x25

TvM

•

640x200

w

9 1

i

T

T

2x25flK5V«F

CPM

Ba

u

04

Pro tost March 18

Toshiba T-200

£2.242

8085

26

64K

80x24

M

80x24

w

9 1

i

2x2S6K5'/«F

CPM

Ba

Ll

04

Standard CP M machine

Transam Truacan

£1.983

Z80A

4

64K

80x24

TvM

640 x 288

w

9 2

T

T

T

2x190K5V*F

CPM

U

S-1 00 machine

Transtec BC2

£1.949

Z80A

4

64K

256K

80x24

M

80x24

w

9 2

i

8

2x 386K5V«F

CPM

Ll

T8

Fully definable characters

Tmon4

£5.744

Z80A

4

64K

160K

80*24

M

w

9 1

i

3

2xl2Mb8F

MPSL-BOS

Ll

Til

Upgradable to Winchester disk

Vectors

£3.852

8068

5

128K

256K

80x24

M

640x312

w

9 1

i

i

2

2x630K5’/.F

CPM. CPM 86

Ba

U

A4

8-bit and pseudo 16-brt

Victor 9000

£2.754

8088

5

128K

896K

80x25

M

800x400

w

9 2

i

4

2x 800K5’/4F

CP M 86. MS-DOS

Ba

□

D8

Same as Sinus 1

Weal 1 50

£6.846

88000

8

256K

1 5Mb

80x25

M

400x300

w

2

j

1

2x616K5F

MCS

Ba

□

S10

Upgradable to 32 user system

W4kes YD8110

£4.025

8086

5

128K

896K

80*24

M

•

960x624

w

9

i

6

2* 1 2Mb8F

CPM 86

Ba

\a

W2

Standard CP M machine

Xerox 820 Model II

£2,415

Z80A

4

64K

80x24

M

1024x612

w

9 2

2

2

2x 160K5’ iF

CPM

□

R4

Powerful graphics

Zenith 120-22

£2,978

8088

S

128K

192K

00x25

M

640x 225

w

• 2

1

T

T

5

2 x 320K5’/4F

CPM. MS-DOS. Z Base

in

Z1

Graph** includes turtle

Zenith Z89-81

£1.668

Z80

25

48K

64K

80x24

M

w

» 2

1

1x100K5’/4F

CPM

Ba-

□

Z1

Elderly CP M machine

Zeus 4

£5.400

zao

4

64K

320K

80x25

(Mr)

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1 x 6Mb5 V.H -r 1 x 250K5 ViF

CPM. Muse

As

M6

Designed as multi-user

DISTRIBUTORS

74201 A7 ACT, 021-454 8585 AS Apple

52657 A5 Alan International (UR), Slough 33344 AS Anglolech Computers. Slough
Computers, Hemel Hempstead 60244 AS Anderson Jacobson Ltd. Slough 251 72

B1 Barcetos Ltd, Leicester 541 574 B2 Bonsai. 01 -580 0902 B3 Britannia Computet lb. lubbji w ........ —

48222 B5 Business Computers Ltd. 01-207 3344 B6 British Olivetti. 01-785 6666 87 Bromley Computer Consultant}. 01-697 8933
Cl Computer Phenpherals Lid. 01 -278 7837 C2 Country Computers Ltd. Redditch 29826 C3 Computer Ancillanes, Egham 36455
C4 Canon (UK) Ltd. 01 -680 7700 C5 Camputers Lynx. Cambridge 31 5063 CS Casio. 01-450 9131 C7 Casu Electronics Ltd.
Uxbndoe 7251 1 CSClento Computing Systems. 01 -670 4202 C« Commodore Business Machines. Slough 79292 CIO Compucorp.
01 -90701 98 Cl 1 Colt Computer Systems. 01-577 2686 Cl 2 Community Computers, PetersfiekJ 87567 C13 Comart. Huntingdon
21 5005 C14 Computers For All, Basildon 418414 C15 CK Computer. Plymouth 78031 1 C16 Country Computers. Redditch 29826
C17Citer MeStsham 706361

D1 Datac. 061-941 2361 D2 Dec Lid, Basingstoke 59200 D3 Digico. Lelchworth 78172 D4 Digital Microsystems. Reading 343885
DS Direct (UK). Warrington 814072 D6 Dragon Data Ltd. Kenfig Hilt 744700 D7 Data General. 01 -572 7455 08 DRG,
Weston-Super-Mare 415398 D8 Data Applications, Cirencester 61828
El Encotel Systems. 01-686 9687 E2 Epson (UK). 01-902 8892 E3 Equinox. 01 -739 2387

FI Faot Addo Ltd. Medway 401721 F2 Five Technology, Lichlield 57701 F3 FI Cord. 061-445 7716 F4 Flight Electronics.
Southampton 27721

G1 Gemini Micros. Amersham 28321 G2 Gecas. 01-629 3758 G3 Grundy Business Systems, 01-9431901 G4 Globe Business

Machines. Weston-Super-Mare 83522 _

HI Haywood Electronic Aaoc Lid. 01-428 01 1 1 H2 Hewlett Packard. Bracknell 63 100 M3 Hytech Microsystems. Oxford 726644
II Icarus Computer Systems. 01-485 6574 12 Interam Computer Systems. 01-675 532513 IBR Microcomputers. Reading 6641 11 14
ICL, Slough 31111 15 10 Technology 01-248 4876 16 Irvine Business Systems Ltd. Irvine 75000 17 ITT Consumer Products.
Basildon 3040 18 Interactive DataSystems, Milton Keynes 313997 19 IBM UK Product Sales Ltd. 01-578 4399 110 Intertec Data
Systems. 01 -840 1599

J1 Jupiter Cantab Cambridge 313479

K1 Keen Computers. Nottingham 412777 K2 KGB Micros. Slough 38581 K3 Kalamazoo Business Systems. 021-475 2191 K4

Kemitron, Chester 21817 K5 Kenilworth Computers. Kenilworth 512127 K6 Kontron Computers. St Albans 66222 _ _

LI Logitek. Standtsh 426644 L2 Lowe Electronics. Matlock 4995 L3 LSI Computers Ltd. Woking 2341 1 U Loglca VTS. 01-637
5171LS Lucas Logic. Kenilworth 59412 L8 Leicester Micro Systems. Leicester 551869

Ml Micro APL Ltd. 01-834 2687 M2 Microprocessor Engineering, Southampton 775482 M3 Mediatech, 01-903 4372 M4
MieroSkitwn. Chipping Norton 3256 MS M.ilbank Computer. 01891 4691 ft Micro Networks Ltd. 01-602 7405 M7 Mattel. 01-900
031 1 MS Microtome Computer Systems. 01 893 1 137
N1 NEC 01 -388 6100

Ol Olympia Boss Systems. 01-262 6788 02 One Products international. Ascot 27686 03 Osborne Computer. Milton Keynes

61 5274 04 Ottlca International. Sunburv-on- Thames 85666 05 OEM. 01-407 3191 _

PI Panasonic Business Equipment (UlQ. Slough 7584 1 P2 Pronto Electron* Systems. 01 -554 6222 P3 Phillips Business Systems
Colchester 5751 1 5 P4 Positron Computer LtoNewton-le-wmows 29741 PS PHL, 021 -745 3033

R1 ^?^8^66wfS RKa?*RMdi^7Mi58 R3 Research Machines Lid. Oxford 249666 R4 Rar* Xerox^Uxbndge 51137
SI Salmon Electronics. Oarlington 721 368 S2 Stirling Microsystems. 01-486 7671 S3 Seed. Brownhilts 378151 S4 Sharp
Electron** 061-205 2333 S5 Sinclair Research Cambertey 681666 S6 Sord. 01-930 4214 S7 SWTP Peterborough 234433 S8
Svtel UK Lid. Peterborough 236010 S9 Shetton Instruments. 01-278 6272 S10 Software Sciences Ltd. Famborough 544321
T1 Triumph Adler, 01 -2501 71 7 T2 Thames Systems Thame 5471 T3 Tandberg, Leeds 774844 T4 T andy Company, Walsall
648181 T5 Texas Instruments Bedford 67466 T9 Torch Computers. Cambridge 841000T7Transam M*rosvstems 01-406 5240
T9 Transtec. Bristol 277462 T9 TRW Datecom International Ltd. Windsor 59183 T10 TDI. Bristol 742796 Til Tnvector Commerce,

W^VeMnw Ltofo^-578 0957 W2 Wilkes Computers. Bristol 277399
Z1 Zenith Data Systems. Gloucester 29451

ZXS1 fully expanded I6K primer hi-rcs
190-ZSS graphics, sound, three tracks,
full keyboard, extra ROM MC monitor
cost £225 accept £145. Tel: Maidstone
Ml 142 (eve).

BBC games to simp. Bug Byte A/Soft etc.
originals only . also Atari- VCS games for
sale £14 o.n.o. S Invader. PacMan etc.
Ring Danny any time 0933 673261 .
Spsetram 4KK four months old . £ 1 00 with
instructions, games Offers J Miotla. 9
Merlin Way. Swindon. Wilts. Tel: 0793
23292 after 7pm (will send computer

Mai 400 I6K+ Basic + Manuals, seven
months old. £8So.n.o. Tel: Mick 01-361
7042 Hayes. Middx
Lynx 4*8 one month old. boxed and in
tnint condition, complete with tapes and
newsletter. £185. Tel: Swansea (0792)
891578 (evenings) require quick sale.
Shag PC 121 1 with printer cassette era
die £85. Microwarc disk drive for BBC
Micro complete with utilities disk and
cables £145. Tel: 0201 «M2I
32N Vic 20 expandable to 40. columns
(£10) +C2N drive -t- Super Expander 4
Intro Bask l + ll ♦ joystick + cover +
magazines 4 £50 software, worth £335
accept £200 or swop for Lynx 48. Tel:
0254 37959 Lancashire, ask for Paul
(after 5pm). Buyer collects,
l OK ZX8 1 . leads . manual three tapes 3D
Monster Maze. Defender. Space Raid¬
ers, good condition. must sell £65 o.n.o.
Tel: 01-4028551 during evenings
Spectrum software. Heathrow £4. 3D
Tunnel £3.50. MCodcr 2 £5. Horace
Goes Skiing £3. Work-Force toolkit £3,
Pac Man £2. 3D Maze £2 50. 75 Hind-
bum Close. Doncaster
Pat 3032 c/w cassette unit, books,
software and cover etc. £325 ono. Tel:
Haywards Heath 0444 454387
Aeon Atom. I2K RAM. I2K ROM.
PSl , leads, manuals, software, sound
amplifier. I O control hoard. 6522 VIA.
Cost £210. sell for£IOO. Tel: Crayford (2)
529436

We 20 +8K. C2N, Rat Race. Jelly
Monsters. Joysticks, Boss. Kaktus.
Frantic. Arcadia, Vic Revealed, excel¬
lent condition, fully boxed, only £250.
Tel: St Helens (0744) 52354
Sharp MZ80A 48K with built-in monitor
and keyboard, plus two stock control
programs, two Basics, manual and
PEE King book. Total value £600. will
■ooqM £450 ono M (061)3702038
Sharp MZ80K software: utility, games
Sharp MZ80K 48K £199 S Payton. The
Prince of Wales Inn. Linghcld Road.
East Grinstcad. Sussex RN192EQ. Tel:
(0342)25703.

Zaam cassette for Atari 400800 also
Savage Island. The Count. Defender.
Asteroids. ROM Sell or swop Tel:
Mick 01-789 7058 Wimbledon . London.
TltS-40 32K Level 2 expansion interface
with monitor and cassette plus Aculab
floppy tape drive and Ouickpnnter. over
£400 software, complete system. £400.
Leicester 700619.

Mart 800-48K plus disk drive, plus
cassette Basic £450 Pilot £45 Microsoft
£40 German £15 Homefile £15. Tel:
01-310 7162 after six. Also other soft-

Marl 400 (guaranteed). Basic, manuals.
£85. Two joysticks , £5. Recorder. E15
Preppie. Baja Buggies and Miner 2049
'cr. £12 each. Must sell. Tel: Hexham
604294

Intarton VC40IK) video computer with
Invaders. Pinball cassettes £50. Also
hand held Invaders Blockbuster two

gcedi £12 \ nqtaim, 15 Ynde

Avenue. RAF Catterick. Richmond. N.
Yorks.

Sharp MZ-8UK 48K. 18 months' old.
includes books, user notes, joystick . and
Epson printer interface . £ I90o.n.o. Tel:
Milton Keynes (0908) 677508.

Swap All my original Atari software (40
games) for an 80 col printer. Tel: Of-998
7851 anytime.

PCN Billboard

Nawhrai* Model AD 32K with built in
display includes computer manual and
beginners tape £200. also Phoenix
20MHz high quality monitor £90. Tel:
01-3379571.

Marl utilities 400800 for sale, plus
Missile Command. Pacman. Star Raid¬
ers. cartridges. Td: 01-998 7851 any

Dragon 32 with tape recorder, printer
lead, nearly new. First offer over £150*
Also Tele writer cassette £40. Td: 01-677
3845 (eves). London SW16.

Mkraritac Cub colour monitor including
leads £270. LVL dual 200K diskdrives
including leads £350 Worldwide ROM
£37, All brand new. Tel: Daventry 3792.
Apple 48K Europlus, colour card, single
disc drive, monitor. Silentvpe printer,
manuals. £800 Tel: Worthing 501378.
CammaAera <54 database program on
cassette £10. Cheque, postal order or
s.a.c. details: Mr K Hulston. 14 Bispham
Avenue. North Reddish. Stockport.
Cheshire SK56NT

ISIS Vic printer, excellent condition
with box of paper £150 ono. Tel: Alton
(0420) 62620 or Winchester (0962)
68085. ask for Iliya.

Brand new Vic 20+ cassette 4 8K RAM 4
joystick + loads of software 4 books.
£160 or newish 4HK Spectrum 4 cash or
printer: 27 Day Drive. Failsworth,
Manchester Tel 061-6884743.
facand hand BBC software for sale, over
300 titles priced from one tenth of the
cost. For full list please write to R
Battacharya. 3 Wcnsicy Close. Harpen
den, Herts AL5 1RZ
ZX81-I6K. mint. 4 £50 of software. 3D
Defender. Star Trek. Flight Simulation.
Subspacc Striker, etc. £33 Tel: Paul.
021-475 3464 after 6pm except on
Thursdays.

BBC one month old. 1 2/V11 Baste issue 4
board. Excellent condition £385. Disk
interface £85. BBC disk manual and
utilities £25. View £45. All immaculate.
0SI-6646S68

Vie 20 I1.5K. three slot motherboard.
Audiogenic Forth cartridge. £110. Tel:
Bccclcs 715502 after 5pm or weekends
MZ-80K twin disks drives I/O box Epson
printer, interface card. 25 disks. 300
programs: disk toolkit: Word Pro. Zen.
Many extras £850 ono. D.J. Need, 92
Ewhurst Road. Croft on Park. London
SE4.

The overwhelming response to PCN’s Billboard
service is causing delay in publication of some
advertisements. To solve this growing backlog
and to cover some of the publication costs we
are now charging £1.50 for each ad. Every form
received at PCN’s offices, 62 Oxford Street,
London W1A 2HG, must be accompanied by a
postal order or cheque for £1.50 made payable
to VNU Business Publications.

Mari 400 32K. 410 recorder, joystick.
£400 worth of software including Necro¬
mancer. SubCommandcr. Star Raiders.
Zaxon, Astro Chase, all mint. £350. Tel:
0553 64920.

BBC B . six months old. I.2.0S plus books
and Acorasoft Snapper. Monsters.
Meteors. Defender. Arcadians. Rocket
Raid etc £390 ono. Tel: Derby 0382
672897 after 6pm.

Star, MZB0A. 1 2 months old . immaculate
condition, plus over £100 worth soft¬
ware. worth £600 new. accept £450 ono.
Tel: Derby 0332 672897 after 6pm
H994A penfriend wanted, to swop
programs and tips, send envelope con¬
taining your programs to Paul Midglcy . 7
Carrington Street, Barnsley. S75 2SP.
Tel: (0226) 43046

IBM Vic 20 +C2N cassette ♦ 3K Super
Expander plus 6 cartridges, over 20
cassettes, five books, excellent condi¬
tion. value £600 require £300 (ono). Tel:
01-788 1753 after 5pm
Mam fully expanded. BBC ROM fitted
books, software leads £110. Tel: (090
485) 328. 4 Derwent Close. Elvmgton.
York Y 04 SAW.

Aeara Atom I2K RAM I2K ROM.
complete with PSU. leads, manual, two
books, software, newsletters £115 ono.
Tel: 0283 216938 evenings
Orie-1 4KK. two months old, four games,
two hooks and two cassette lead Bargain
£130. Tel: 01-554 4897 evenings
hkkr Centronics 739-2 quality printer,
suit most computers, includes BBC-B

boxed with manual, immaculate £290.
Tel: 01-9799102 cvenings/weekcnds
Mlcra power three channel sound add-on
with amplifier, speaker and joystick
ports for ZX-Spectrum £13 Five rolls of
Sinclair printer paper £6. Tel: Esher
62785

AcoruaeW have a Countdown to Doom
cartridge I'll sell or swop for other
Acomsoft programs Special deals can
be arranged. Tel: (0272 ) 683158 (or
details

Mari 400800, 48K RAM board. £65.
Defender, one with instructions. £18.
one without. £12. Harrison. 82 Hey
Street. Spring View. Wigan. WN3 4UJ
Mari 4<Xi 4KK, six months guarantee plus
Basic. Star Raiders and many cassettes,
will accept best offer. Tel: 01 -561 407 1
VWa# Genie with hi-res and sound, also
feature ROM. loads of software (inc
assembler and compiler ) Worth £550 4 .
sell for £300 ono. Tel: Caergwrle (0978)
761347 after 4pm

Sharp MZ-80K 48K RAM extended
Basic, green screen, manual over £100
worthsoftware includes Wizard's Castle.
Space Invaders. Scramble. £295. ono.
Tel: 0522 24508 after 6pm.

Fraa I2K 4 I2K Acorn Atom with leads,
manuals and PSU. plus matched cas¬
sette deck, worth £320 when buying my
Atom Magic book. £175. quick sale . Tel:
(0472) 48534. after 6pm
1BK ZX81 for sale, power pack, leads,
manual, books, over £40 of software
including Mazogs. Chess. Froggcr.
Backgammon, total value over £90.
bargain at onlv £46 Tel: Lea Valley
715650 (evenings)

Wanted Vic Men. Krazy Kong or Gridd-
Runncr Exchange for Arcadia. Frog or
Cosmiads Tel: Wilmslow 524284 be¬
tween 4 30-6 20

hrteMvisieo hardly used. Voice and 14
cartridges £270. might split. Tel: Went¬
worth 4193.

Spectrum software including Hobbit.
Pcnctrator. Ah Diddums. Schizoids.
Arcadia. Timegate. Painter. Orbitcr.
Hungry Horace . Flight Simulation Over
40. Tel: 061-881 3651 (Tony).

Menhrain A with software and beginners'
guide £230. boxed and still under
guarantee. Tel: Bolton 63725.

Vie 20 4 cassette machine, joystick.
£100. voice synthesiser £30. Super Ex¬
pander £25. Sargon II Chess £15. 12
games! Rabbit etc) £30. 4 books £8. Td:
Yatcley (0252) 872275
Pat 8K OldROM. excellent condition
with much software and instruction
books. £180, Foster. Tel: Weybridge
(0932) 47472 (evenings)

Spectrum pen friend wanted. If you
would like to exchange programs and
news please write to Paul Phillips, 13
Mountain Road. Conway. Gwynedd,
North Wales

Sharp MZ80K 48K including dust cover,
reset switch, three basics, games, many
trVc Speech synthesiser tape, adven¬
tures. football pools, many more £300.
Tel: 01-337 1393.

Mari 4NK 400 with program recorder,
many books and manuals, over £150
worth of games, only £220. all in as new
condition. (0455)614830.

Mr A Sharp 12 Rainbow Close, Orping¬
ton. Kent Tel: (0689) 39809 Atari 400
16K. program recorder Basic. Jumbo
Jet, Pilot. Star Raiders. Assembler.
Editor De Re Atari 4 lots more
software, manuals etc. £300 ono
BBC games for sale, six Acomsoft games
in addition to three others, all nine
programs arc on disk;only£39ono. Ring
Wclton 61076.

Waatad Spectrum in exchange for Fidd-
ity 2000, 40 channel CB with aerial and
power supply, value £130. Tel: Sudburv
(Suffolk) 75344 (evenings)

We 20. cassette . software . JcUymonsIcrs .
4K RAM. joystick. Vic Revealed and
much more. £1200 ono for quick sale
Tel : Luton 34889 after 6pm or wee kends .
Lynx 4SK. three months old. good
condition. £190 ono including p&p
Write: Tony S. No 9. Thorndiffe
Roaad . Sumihcrtown . Oxford, for furth¬
er detail*.

ZXB1 IK with manual and leads, five
months old. excellent condition. £25.
Plus Asteroids. Gulp. Monstcrmaze
(16K) £9. Tel: Winchester (0962) 63259
(evenings)

ZXB1 4 16K RAM plus leads, manual etc
and software . good condition sc II for £45 .
Tel: (0634) 22041 1 . Ashley .Town Road.
Cliffc Woods. Rochester. Kent
Epson MX to Apple II printer interface
card unused and boxed £45. Td: 01-501
1342.

Atari MXV400 games on cassette . Za s son ,
Astro Chase. Preppie. Hazard Run,
Ghost Hunter . Cross Fire, and others. 1 1
for £40. £5 each. Tel: 0734 67651
Spa chum 4*K 4 23 games tapes, shop
value £287.85. quick sale for £140 Tel:
0638 665812 evenings or write to H
Houghton. 3 Warren Towers. Moulton
Road. Newmarket. Suffolk
Atari VCS £60 including two games
additional cartndgcs£l I each Atari 400
Pacman brand new. unused £24. Tel:
01-6226073

BSC Model B. disc interface. Canon
Drive, utilities and games software,
manuals, and leads best offer, may split
Preslcl 01-373 0599 evenings and
weekends.

Acorn Atom I2K RAM I2K ROM all
plugs and sockets, fully expanded. £60.
Boorth software, two books, almost new
£195 ono. Tel: Walerlooville 54420
100 Pci games including Chess, Star
Trek. The Valley and Breakout, only
£10. Tel: Southend (0702) 588601 after

ZXS1 and Spectrum tapes half price.
(0272) 851337. Texas TI99/4A complete
wit h cables and joysticks and tapes £125.
(0272)851337 Naitvca
Lean to play good chess with my
immaculate Acctronic Chess Computer
with dust cover, mains adaptor, board,
pieces neatly integrated inlodesign. £30.
Tel: 0234 216215.

PCN JULY 28-AUGUST 3. 1983

79

PCN Billboard

Tanhug VI. 2 listing wanted John Hey. 10
Boacombe Avenue. Barton. Ecclcs.
Manchester

ZX80 hooks. 30 Programs. Magic Book.
HintsTips. Pocket Book, Companion,
excellent condition . Bargain . all five only
£10+ Borland. 51 Lovell Gardens.
Walton. Norfolk.

UK101 sk RAM. 32/48 screen. 300/600
Baud. Cegmon. RS-232. Built into metal
ease, adventure games. Space Invaders,
etc. Allfor £90. Tel: 0454 613416.

Disk drive, Siemens FDD- 1 20. Nm SS
SD/DD, good condition, with OEM
manual. I9in ease. CP M manual, all
£110 Please phone (M546l34l6(Bristol

We 28, I6K RAM pack. C2N cassette
deck, joystick, Boxed, cheap. £135 ono.
Road Race cartridge. Chess, Traxx.
Vicmcn. Star Wars. £30. Tel: 0734
785130. you collect, near Reading
Far salt: Atari 40U/800. Centipede car¬
tridge . £20 or will swop (or Asteroids or
Gorf cartridge. 10 Lawton Street. Rook¬
ery. Nr Kidsgrovc. Stoke-on-Trent.
Staffs

VMea tienic 16K with integral cassette,
manuals and leads included, best offer
over £150 secures, some games to sell
separately. (Asteroids. Cialaxian). Tel:
031-661 1417

Computer wanted in exchange for my
audmlmc 40 eh CB. power pack. SWR.
meter, twig and cable. C Anderson. 167
Malcolm Way. Knighlsbndgc. Living¬
ston. West UMhian EII54 KLW
Atari computer game with eight games
and Both joystick and paddle controllers.
£l(li ono. bnlv four months old. Tel:
Borough Green (07321 88-4303
Fuller used keyboard for ZX8I, £18.
Panda I6K expandaMe RAM for ZX8I.
£15. selection of IK and I6K tapes,
books, magazines etc Tel: Cambridge
(0223)871276cvcnings. "

Wanted: ZX8I . will pay up to £25 for IK
or £35 for I6K. Tel: Kidderminster
744956 evenings

Pat 32K large keyboard, new ROM. with
dual disk drives, and printer. Toolkit.
Superchip, manuals, leads included,
ideal for small business or personal use .
£ 1 . 100. Tel: Windsor 58472 evenings
We 20 k.ii Race and COmtiadi in
exchange fix Gorf. Star Battle. Adven-
turland or Chopliflcr cartridges. Cos-
miads cassette for Bonzo or Skyhawk
Tel: Goolc (0405) 4047 after 5pm
Nwcoai I with 48K. Hobbit microcassct-
tc drive, /.cap in l-prom. graphics.
Nas-Sys. F.prom Programmer, nicely
boxed . lots of documentation and maga¬
zines. £325 - might haggle! Tel: 0625
72988 after 6pm

Wanted BBC B Com 64 unwanted Pet or
Sharp MZ-8II will pay £285 + . Tel:
Brcdiland 4356 or write. Syd Mccancc.
17 Mciklcnggs Drive. Paisley PA29JN
CS freak turned vicro freak, must raise
necessary cash for a Spectrum, will sell
120 channel Home Base (including all
extras), in excellent condition. £90 ono.
D Kelly. PO Box 109. Rathcolc. Co.
Dublin. Eire

ZXS1 Ihkbmanuats and Books. Icadsand
transformer, good condition Games:
Flight Simulation. 3D. Monster Maze,
bargain at £40. Tel: Brookwood 2817

Oracwi 32K. three months old. used
once, also cassette player and manuals,
everything boxed, cost £230, will accept
£170 ono. Bargain- Tel: 01-4289840. ask
for Sailesh

We 20 Super Expander cartridge. £25
ono Tel: 01-8086450
Mari VCS with 22 cartridges, cost over
£675. genuine Bargain at £230 Ajmel. 7
Holly Road. Northampton NNI 401..

ZX81 Ink six manuals and hooks, leads
and transformer, good condition
Games: Flight Simulation. 3D. Monster
Maze. Bargain at £40 Tel: Brookwood
2817 (Surrey).

Tandy Colour Computer, large selection
of software, ready to swop? South
Ben Heel 4965

Pat 2001 Ms integral cassette program¬
mes. toolkit manuals. Chess. Backgam¬
mon. Tuition and other tapes Excellent
condition. £250 Tel: 01-300 8702
Mari Mil) 32K plus program recorder,
joysticks, manuals and various games,
worth £800+ . sell for £450 ono Tel:
Stevenage (0438) 723998
Camas: Spectrum Hobbit. £8: Spectrum
Pi mama. £6; Atari Star Raiders. £15
Tel: 041-427 1460

We 20 C2N . joystick and lotsof mags .sell
£150. six months old. Tel: Cwmbran
(06333)64828

Spectrum software including Hobbit.
Penetrator . AhDiddums. Schroids.
Arcadia. Timegate, Painter. Orbitcr.
Hungry Horace. Flight Simulation. Over
40 Tony 061-881 3651
Spectrum I8K + 23 games tapes, shop
value £287.85, quick sale for £140 0638
665812 evenings or write to B Hough¬
ton. Warren Towers. Moulton Road.
Newmarket. Suffolk.

Atari VCS £60 including two games,
additional cartridges £ 1 1 each. Atari 41X1
Pacman. brand new . unused £24. 01-622
6073.

B8C Model B. disk interface. Canon
drive, utilities and games software,
manuals and leads, best offer, may split
Prcstcl 01-373 0599 evenings and
weekends.

WMted Vic Men. Krazy Kong or Gridd-
Runner Exchange for Arcadia. Frog or
Cosmiads Wilmskiw 524284 between
4.30-6.20.

Aeon Atom I2K RAM I2K ROM all
plugs and sockets, fully expanded. £60
worth software, two books almost new
£195ono. Watcrloovillc 54420.

32N Vic 20m. expandable to 40 columns
(£10) + C2N drive + Super Expander +
Intro Basic I ♦ II ♦ joystick + cover +
magazines + £50 software worth £335.
Accept £200 or swap for Lynx 48 0254
37959 Lancashire, ask for Paul (After
5pm). Buyer collects.

100 Pet games including Chess. Star
Trek, The Valiev and Breakout, only
£10 Southend (0702) 588601 after 5pm
ZX01 and Spectrum tapes half price
Texas TI99/4A complete with cables and
joysticks and tapes £125. Nailsca (0272)
851337.

Imbue vi.2. listing wanted. John llcy.
10 Boscomhc Avenue. Barton. Ecclcs.
Manchester

ZXOO books. 30 Programs. Magic Book.
HintsTips. Pocket Book. Companion,
excellent condition . bargain . all Five only
£10+ . Borland. 51 Lovell Gardens.
Walton. Norfolk

UK101 8k RAM 3248 screen. VX16IXI
haud. Cegmon. RS-232. built into metal
ease, adventure games. Space Invaders,
etc All for £90. 0454 613416
Disk Drive, Siemens FDD-120. Km SS
SD/DD. good condition, with OEM
manual. I9in ease. CP/M manual, all
£110. please phone (M54 61 3416 ( Bristol

Laarn to play good chess with my
immaculate Acctronic Chess Computer
with dust cover, mains adaptor, (ward,
pieces neatly integrated into design . £30.
0234 216215

Wda* Genie with Hi- Res and sound, also
feature ROM. loads of software (me
assembler and compiler ) Worth £550+ .
sell for £300 ono Caergwrie (0978)
761347 after 4pm

Sharp M/.-koK 48K RAM Extended
Basic, green screen, manual, over £100
worth software, includes Wizard's Cas¬
tle . Space Invaders. Scramble. £295 ono.
(0522) 24508 after 6pm

Sharp 1*6 printer, friction tractor, inter¬
face. cable, manuals £350. Reading
584497 Winbow. 102 Sherwood Street.
Reading. Berks

Spactrwii educational software for sale,
for infants and juniors, five stimulating
games for £4.95. used once only M
Bristow. In-Vid-Ria. Route Charles.
SPP. Guernsey. Channel Isles, require
immediate sale

ZXS1 Gateway Guide book by Mark
Charlton. £3 All 12 PCNs 50p each
Other weeklies any offers? Write J
Allen. 1 Kingsfield Close. Bradford-on-
Avon. Wiltshire

Wanted I6K. ZX8I home computer plus
cassettes, exchange Acctronic video
games with three cassettes plus handheld
Arcade Defender with everything in¬
cluding game speed contrail. 2 Recrea¬
tion Road. Southall. Middlesex UB2
5PE.

Wanted: Vic20 Super Expander cart¬
ridge. will swop Wacky Waiters. Multi¬
sound synthesiser. Amok. Space
Phrccks and Blitz Cassettes for the
Cartridge. Dungannon (08687) 25324
Wanted lor ZX8 1 a suitable tape recorder
for under £20 ono. Rugby77H35 after 5.
M I cmplemum

Spactnrai software, swop Penetrator.
Mincd-out OB Ltd. Mastcrfilc. Time-
gale etc. For Trader. Terror Dartik.
Vu3D. Warlord. Diclor and other high
quality 48K games. MichaelOl -340 26.30
Aenra Atom. I2K RAM + 24K ROM. 5
amp PSU. all connectors and buffers,
lots of software. £175. BBC conversion
hoard. £30. 01-4224573.

Spactnm, 50 games for sale, only £5 or
swap for Penetrator. Gobble -A- Ghost
or Orbitcr (original tapes only ) Din-
mngton 568580 after 4.30pm
Tuscan 5100 KK ROM Basic 64K RAM.
card with 32K CMOS RAM. stereo
sound card . cent ronic RS232 ports. £299
L'pminstcr 24145 after 6pm
Acnm Atom I2K + I2K with F P. all
leads and mams adaptor, some games
and books. £120 190 Thornhill. Ras-
trick. Brighousc 0484 717476 Philip
Ambler.

PtiMpa G 70(81 as new including instruc¬
tion book and five games cartridge.
Pacman. Laser War. Space Monster.
Billiards. £100 the lot Hanson. 47
Quinton Road. Sittingboume. Kent
ME 10 2DB

Dr agon 32 .md Tandy Colour Computer
Copycat. This program copies machine
code tapes, send £3 and sac for a listing
Richard Hunter. I Great Park. Park
Close. Southwell. Notts NG250EE
168 ZX8I. magazines, four tapes worth
£90. sell £55 (good condition). Ilavwards
Heath (0444) 451381 after 4pm
Dragan 31 software. Wizard War and
Dragon Trek £IOca. also program pack
2 and Dragon selection £10. all as new
Sheffield 0742 550326.

Swap Spectrum software please Leigh
(0942) 678129 weekends
Atari 400 software, lour Atari games
including. Star Raiders. £20 each, also
Cry pts of Terror (graphic adventure ) £ 10
— £80 the lot 0484 29182.

Spnctnmi I6K games - Mender (£6.50)
Gulpiyan (£3). Space Raiders (£3).
Artie. Microchess (£5). or £16 (or all
(cost over £26) Kers. Coventry 4699
Wanted BBC (B) circuit diagrams also
BBC (B) disc interface fitting instruc¬
tions Original or photostat copies Will
pav £5 each Idris 0384 6434.. (day):
021-773 2869 (Evenings)

Spectrum software to sell or swop for
other software: 3D Tunnel. GB Ltd.
Hungry Horace. Horace Goes Skiing.
Timegate. Nilcflighl. Penetrator 0279
36274.

B8C dual disc drive. Canon MD220
80- track D sided HOOK with 4080 track
switches and BBC cable. Cased with
power supply, brand new, bought in
error. £625. 051-644 6568. Disk and
manual included.

ZX81 I6K. Filcsixty keyboard video
invert (Switchablc). keyboard beep,
keyboard repeat ( Switchablc ) . software :
Vu-File. Fast One. 3D Maze. City
Patrol . 30 hr-Basic book, executive ease.
Davis 01-883 7286

Why wait? Buy my 48K Otic- 1 micro,
including lots of quality software, only
two months old. sell for £150 ono.
66-72793 or 01-633 3771.

BDCModcIB. IIX1K disc drive. CRTH0A
cassette recorder. 10-inch B W monitor,
joysticks, software on disc. tape. +
books. £700 Newent C.los<0531 )82I634
evenings.

Atari VCS including 16 cartridges, open
to offers over £280. 01-593 7700 after
4pm weekdavs or weekends Ask for
Rod

Artea expansion unit for Vic20 Make
your computer into a real system, seven
slots for cartridges, memory, aids, etc.
absolute bargain at £50 as new Havant
486748.

Atari Video Computer System with
Dodgems. Maze Craze. Asteroids.
Haunted House. Indy 500 (+ Control¬
ler) All worth over £250. will sell for
f 125. (0202) 707840
Caste FX602P Alphanumeric pro¬
grammable calculator with FA2 cassette
adaptor and programs including Flight
Simulator and music, cost £95. asking
£70 ono Mildcnhall (0638) 713933.

Frua I2K + 12K Acorn Atom with leads,
manuals and PSU . plus matched cassette
deck worth £320 when buying mv Atom
Magic Book £175. quick sale (0472)
48531 . after 6pm

168 2X81 lor sale, power pack, leads,
manual, hooks, over £40 of software
including Mazogs. Chess. Frogger.
Backgammon, total value over £90.
bargain at only £46. Lea Valley 715650
(evenings).

Sharp MZH0K with lots of software for
sale. All you need for £265. also Atari
VCS with five boxed games. £ 1 20. ( 0202 )
707840.

Sinclair ZX Spectrum Ink. as new.
together with Special Invaders and
Meteroids. offers around £75. 01-954
8753.

Wanted. I6K.ZX8I with a couple of
games for £40 Selling Tandy TV game .
88 game variations lor £15 bargain 7
Gladstone Terrace. Whitlev Bav. Tyne
and Wear. NE26 2EH, ask for Paul
kcllv

Acctronic video game with Invaders.
Maze Craze. Air Sea Battle. Planet.
Defender and Olympics, only £50 ono.
For quick sale. Ashton-m Mukcrficld
726456.

Wanted VTc2l) cartridge programs, only
adventures needed, with instructions
please Reasonable prices paid, includ¬
ing postage 021-554 8624 after 4pm . ask
for Manjit

Atari VCS as new with seven cartridges
including Pacman. unique American
Spaccchasc and new Star Raiders, all
boxed as new. genuine reason for sale,
only £100! Leeds 40082 1
VK20 Computer, lew months old. in
excellent condition, plus 3K RAM
cartridge, virtually unused. Also the
book Vic Revealed and owner’s manual
Only £1 18 MaecIcsTield 24060.

VIC28 The Count . swop or sell. £17. also
Alien Blitz £5 Rochdale 44003
18KZX81 computer. 4K graphics ROM.
keyboard, sound board, games worth
over £200. lor sale for £85. Gl Yarmouth

48K Spectrum, printer, joystick ampli¬
fier, £20 worth of printer paper . software
and books worth £ 100. cost me £400. cost
you £200. good condition. (U872S5)
2842.

80

PCN JULY 28-AUGUST 3. 1983

Far tala video genu* (Model I ). includes
£60 of software . colour board . sound unit
(not fined) and computer books. tlhO
ono. Bkvxwich 406386
Acrirteic MPU VCS Muricai Games,
cartridge only, £8, ono. Complete Ace-
Ironic VCS system with Invaders. Laser
Blasts. Super Knockout and above. £75
ono Borland. 51 Lovell Gardens. Wal¬
ton. Norfolk IP25 6CX.

Atari VCS cartridges. Activision
Kaboom. Fishing Derby. £12. Dragster.
£10. Circus. Outlaw. Miniature Golf.
Adventure. Human Cannonball. Bas¬
ketball. Basic Programming. Basic
Maths. Boxing. £10 each Borland. 51
Lovell Gardens. Walton. Norfolk IP25
6ZX.

Sharp PC1500 pocket computer with 4K
RAM plus printer cassette interface.
Cost £350, sell £225. Newmarket (Ub3K)
6658 1 2 evenings. Mr Houghton. Warren
Towers. Moulton Road. Newmarket,
sutu.a

Or aeon 32K with manual Dragon toy-
sticks. Tanoy tape recorder (with leads)
and £30 wort h of sof tw arc Wort h approx
£300. will sell for £250. Ingatestone
353524 after 4pm

BBC ModB with joysticks. £fi(IO of
software. assembly language hook and
many magazines, will accept £4M).
negotiable 01-833 1440 quickly'

Swap Savage Sword Conan Nos 1-7
( rare !) plus M l Mad Magazines ( mint ) lor
ZX8I P Moltram. 13 St John's Grove.
Hull. Humberside

Wanted /X Spectrum lb or 48K. must he
in good condition . w ill pay up to £80 max .
(0384)277140

16M ZXKI. printer and lour cassettes of
m >ft w .ire v £85 ono. 115 1 -924 6473
Atari Ht)0 4KK plus cassette, joysticks.
£150 worth of software plus lots of
magazines, only £350. 01-251 3709. after
5 30pm.

Unwanted Spectrum ZXKI software.
Transylvanian Tower 3D adventure for
Spectrum 48K £4. Mad Martha Spec¬
trum £4. ZXKI Kong £3. unused, sac A
Fletcher. 11/4-27 Casllchay Drive. Mil¬
ton. Glasgow . G22 71 J
Common! oc» M brand new. used once,
two months old with direct cassette unit
and software tape, value over £4UI.
accept £299 ono. 01-570 8517 after
5.30pm

IS* RAM pack for ZX8I £6.50. IbK
Galaxians. Fun to Learn inventions.
History, super programs series 3. 4. 10
games. All £10 Stockton 602936
TRS-80 IbK I 2 good condition, plus H W
TV and CTR-8IIA recorder, all leads,
manuals hooks and loads of programs
included. Price wanted only £390 ono.
(Watford) 31421.

Atari VCS. 20 cartridges, new joysticks
for sale or swop. Write loG Keenan. 61
Glcnfinnan Road. Glasgow G20 KJG
with offer (no callers please).

ZXBO, rare chance to acquire Sinclair s
first! Perfect working order, boxed,
mams adaptor and booklet included
Cos! £100. Any reasonable offers!
Emsworth 4541.

ZXB1 IbK. File 60 keyboard ♦ £40 of
softw are + mags , sell for £66 or nearest

offer (Mcdway)0634 366332.

Wanted, software on the new colour
Genie Please send a list of what you have
and want to sell to Steven Prior. 30
Coldootcs Avenue. Leeds LS96NB
Wanted, CBM 803296. plus 8050 drives,
plus any extras. Must be in good working
condition. 01-3X5 2469
Taxa*,TI994A computer, plus joysticks,
cassette lead, three games, clc. £120.
Two months' old. (Glasgow) 041-8X3
1522 after 6pm

Wanted, Sew Brain Model A. 03305 269
(evenings).

Dragon 32 computer. £300 of software
manuals and joysticks, etc. Games
include Dragon Trek. Donkey King and
more. Sale for £250. Sunhury on
Thames. Middx X3 1 56

PCN Billboard

Pimama etc £45. Also Black Crystal
adventure for 48K Spectrum £4 or swop.
Barford 624574.

Sbarg VIZ SDK plus software, swop for
Spectrum with printer and software or
BBC A B or something similar Poole
(02(G) 707840

Osborne 1 micro CPM based single
density with Wordstar. Supcrcak. Basic
and Software worth over £800. will
accept the best reasonable offer, hut
don't call with silly offers. Reading
(0734) 744303.

Sharp MZkoK. ideal for small business or
home, integral screen and cassette with
games and manual. £325. All ready to
start Poole (0202) 707840
vic-20 i s player Manual. 35
programs, all cables, worth £200: £130
ono (including p*p + insurance), all
boxed. Glcnhoig 874204 after 5pm.
Bargain — Acctronic Chess Computer +
mains adaptor, hardlv used, eight levels
of skill Bedford (0234) 216215
488 Spectrum printer. £20 of paper,
amplifier, joysticks, software and books
worth £100. cost me £400. cost you £200.
good condition. (OK7255)2842wcckdays
after 4.30pm.

Srihatlia GPKI0A printer, as new. suit¬
able BBC. Oric. Dragon etc. with
centronics interface. £175 ono. Tnng.
He rtsf 0442821 5443 (evenings)

16* ZX81 wiih manual and leads, also
Osavc (fast load, save device. IbK in 30
seconds), plus three hooks and over £50
worth of software (chess, assembler,
games). £65 ono. (0942) 53022.

Cmm dor* Pet 2001 . KK . Basic 3 integral
cassette and VDU, including Invaders.
Golf. Database. £250. Weston-super-
Mare 0934 24856.

Exchange: I Men 3in reflector telescope.
7Illlmm. three eyepieces, zoom lens for
land use . full size tripod ♦ sun filter. For:
Vic-20 or 48K Spectrum Michael. 5
Hallon Drive. Shircmoor. Ncwcastlc
upon Tyne NE27 USG.

Loads of Spectrum software including
Hobbit. Pcnclralor. Arcadia. Time-gate.
Cruising. VU 3D. Ah Diddums. clc. clc.
over 40 altogether, very cheap, first
caller. £10. Tony 061-881 3651.

Wanted printer to suit unexpanded
TRS80 Ml Lll. 29 Slcncilh Road.
Walsall. West Midlands Walsall 27371

Atari Missile Command and Star Raiders
cartridges plus other games, will sell or
swop other games. Also wanted. Atari
diskdrive Rochdale (0706) 59602
ZXS11SK - software worth £1 10. buyer
collects. 13 games, sell £55 Mark
Hudson. Eden Rise. Prospect Fields.
Robin Hood Bay. Whitby. North York-

Atari games, sell or swop, all on cassettes.
C. Climber. Zaxxon. Galactic Chase.
Airstrike. Ghost Hunter and more.
01-203 4545. Call after 4pm
Commodan machine code monitor car¬
tridge. use with Vic-20, still boxed with
manual, only £15 Bude 1 02881 2889
Vte-20 cassette deck, super expander,
joystick. 3K RAM expansion, toolkit,
machine code monitor, hooksand games
cartridges, all half price. £200. Fleet
20587

IntefIMsIoa .nd voice, fisc games. Space
Spar urns . Lock and Chase . Space Battle .
Triple Action. Blackjack. £120. Mr
Webber. II Coronation Villas.
Beaumont. Clacton. Essex COI60AR
Tnan TI-9W4A computer + leads and
manuals, two weeks old. £90. Write loS
Snell. 47 Fane Road. Walton. Peterbor¬
ough Peterborough 75291
Commodora ( '2N cassette unit with coun¬
ter. unused. £30. (0279) 504844 (even¬
ings)

VldM Genie . one with cassette and green
screen VDU. £70 worth of software and
all manuals, all for £130. Wcslhurv
8652211

16* ZXS1, learning lab. atound 5(IK of
top quality software including Flight
Simulation and Frogger. worth £120.
selling for £55 Ian. Pcnkridgc 3378.
Shat* MZ80K 48K. manual, software,
database. VAT accounts, good condi¬
tion. delivery organised, price £220.
Jaram IM82 847069 after 6pm
Swop! My ZX8I ( IbK ) plus £60 worth .4
software, magazines and boohs (includ¬
ing machine code tutor) (or your Jupiter
Ace. 021-472 7778.

ZX81 • 16K RAM five monthvold. soil
boxed. Variouv volt ware books and
magazines, accept £50. Norwich 403613
(evenings).

Spectrv ix 1 r-K. Spectral Invaders. Cos¬
mos. Orbitcr (Defender), over the
Spectrum cassette one Will veil £3 each
or £12 lot 01-597 1470 after 5pm

Intetlmsion. four months' old. hardly
used plus five games. £1 80 for the lot. sell
to buy BBC (B) Micro. 01-889 9822
during evenings

Sinclair ZX8I IK personal computer,
five months old. with power supply,
manual, etc. £30 Also high resolution
graphics for I6K ZX8I. £30 (0909)
564424

Wanted BBC model A or B. software
optional, any operating system, price
negotiable up to £2X1 according to
accessories, leads and manual unncccv
ary York (0904) 32762 after 6pm
Wanted Super E v pander for Vic-20, must
be in good and working condition, will
pay £1 5. all offers less than £20. Contact
Donald. (MSI 5239 after 5pm
Wanted BBC model A in good condition
and inside guarantee, will pay £200 and
also any delivery rales Ask for Mark.
I aid.lt (11222)60022.

V«-20 joystick. £5. Vic Revealed. £5.
Alien cartridge. £10. also BBC Castle of
Riddles. £5 All boxed as new Offers
considered Ashton-in-Makcrficld
720984 after 6pm

Vie 28 computer, cassette deck. Forth
and Avenger cartridges, joystick, books,
games, clc. £180 Ruislip 35173
BBC software . swop Acornsoft . Program
Power. Bug Byte. AAF clc. for other
programs, call Ron. Tel 01-833 1440
Vie 20 Super Expander, will swop lor
machine code monitor or sell £25.
Stephen. Tel (0908) 604755 after 4pm
Acrimic C hess Computer + mains
adaptor, less than ten hours usage, still
boxed, eight levels skill. £30 or swop for
ZXKI Bedford (0234) 216215.

0rie-l 48K computer link- used, com¬
plete as supplied, bargain only £l45ono.
Borland. 51 Lovell Gardens. Walton.
Norfolk IP256TX

BBC official joysticks for safe £9 ono
Also BBC software to sell or swop,
including Acornsofl and Program Pow¬
er 01 -808 8906 after 6pm
BBC software to swop. Micro power.
Acornsoft. A4F and many more pro¬
grams for the BBC. 0232 238373. after
3 30pm

Atari 410800. Submarine Commander
£20 or swop lor Tricky Tutorials or
Eastern Front. 0343 44695 after 6pm
Wanted battery backed RAM for Sharp
PCI50 (CEI5H). Reasonable offers
please Binysh. 26 Fcrnleigh Rd. Win
eh more Hill. London N2I 3AL.
Commodora -lock control program. 32K
3000 senes Pet plus disk aand printer
required. Surplus original program £100
ono. Lambert. Tel (0442) 45239.

' READERS’ BUY&SELLFORM ;

Billboard is POSTs micro marketplace. Whether you are buying, selling, or swopping secondhand
goods, just fill in (he form up to a maximum of 24 words, including your name . address or full telephone *
number and send it with a cheque or postal order for £ 1 .50 payable to VNU Business Publications. I
. to Billboard. Personal Computer News, 62 Oxford Street, London W1 A 2HG. But remember, this j
' service is not for commercial advertisements; we will not include ads from companies large or
| small, or from anyone carrying on a profit-making business. Also, we cannot guarantee to place ads
in specific issues — it's first come, first served. No reprints either unless you send in another form. I
' Please write clearly putting only one word in each box. and remember to include your full address
and telephone number, even if you don't want them in the ad.

PCN JULY 28-AUGUST 3. 1983

C8M8U32 computer and
Nif*2 disk drive, excellent condition
manuals, connectors, all included price
£2.500+ . selling £1.600. VJ. 021-356
6363 evenings, swop for BBC-B.

Texas Silent 700 thermal keyboard prin¬
ter. 5V«in (loppy disk drive, (both plug
into each other, hut require interface
connectors for other hardware) £100.
051-928 8020

Mari Pilot Educator (CX405) mint £50
Atari Conversational German £25. 01-
310 7162 after 6pm

GoNM lypcrwritcr printer with senal
interface (135 baud — 15 cps) Z80
software and baud rate generator for
Nascom available £190 ono. Mike
01-874 6244

Wanted Dragon 32. I've managed to save
about £120. can you help? Tel Eaton
Bray 220258.

fte new . Tandy TRS-80 Colour Compu¬
ter 16K. with leads and cassette recorder,
four months ok) £200. might split.
Hedges Cranford. Salisbury Rd, Shcr-
ficld English. Romscy. Hants
Vlc20 sk RAM two months old £25 ono
Derby 810239 before 6.30m or 810643
after

Stariord I2SI players, make diplomatic
contact, join Alliance'’ Non-players
requiring information about this play-
hy-mail game. (SSAE). P Moreland.
Basement Flat C. 4 Hcdgegatc. Powts
Terrace. London Wl 1
Wanted High! Simulation programs for
Spectrum I6K48K. also books or other
cassettes, cash via Eurocheque or inter
Post Order. W Brady. Laan Dcr Veren.
Nalics 3 4334 ES Middclburg. Neder-

W anted Vic 20 cartridge games. Sargon II
Chess. Adventure and arcade. Also
wanted C2N cassette unit m good order
01-789 1519. ask for Bob or leave phone
number.

T«aa T 199 4 A owner will buy used
games: arcade type; flight simulator,
space games, must have good graphics,
sound, send info to Mr Cooke . 46 Hooks
Lane. Thorngumbald. Hull HU129PZ.
ACM* Atom 16k ROM 12k RAM with
utility monitor ROM floating point
ROM plus books, manuals and over £60
software, tapes £160 ono, Dave (0788)
812940. evenings only.

Database TV game and six cartridges
including Space Invaders. Road Race
and Space Baltic, colour and sound,
joysticks and adaptor, all for £4$ ono.
01-6752701

team Atom l/2MHz, I2K RAM I2K
ROM 6522 and FP ROM printer inter¬
face. all manuals and leads, software
includes Frogger. Galaxians. Pacman,
Invaders. Space Panic. Defender.
Zodiac, will sell £100. (0487) 841064.
team Atom. I2K ROM I2K RAM
includes, manual, new power pack, all
leads games hooks, all for only £99.
Manchester 061-428 2769.

TBS80 software Visicak. Quick pro*
program generator, word processor,
budget management, memory informa¬
tion. ncwDOS+ Basic, pools systems,
disk cassette s u e list 104 Ashurst
Road. Cockfostcrs. Barnet. Herts. 01-

TRSaO Level II 48K dual disks cassette
RS232 lower ease, manuals, monitor
plus software Vtskalc Ouikpro+
New DOS + etc. worth over £2.000 £950
ono 01-449 2909

Mari VC’S with joysticks. paddles etc.
and Combat. Space War and Dishing
Derby Bargain at £90. (09654) 3317.
(after 5pm I

BSC Modcl-B utilities: link-editing, con¬
solidation with subroutine libraries;
Basic virtual memory allowing unlimited
program sizes; etc. Disc-based. Basic-2.
£17.50. C Gouyon. 51 Codenham
Straight. Basildon. Essex SSI6 5DJ
B8C software, swop Acornsoft Salaman¬
der. Program Power. A&F. and many
more, call Ezra 01-458 6440 evenings

PCN Billboard

Texas T 1 99 4 . hardly used . still with box.
ideal for learning on. with comprehen¬
sive Icaners manual Wrexham 758653
(evenings)

Aeon Atom 12K RAM. I2K ROM. tool
box ROM books, listing approx. 20
programs on tape, power supply and
leads. £170ono Oxtcd48l9
Vk-20 with cassette unit. Atari joystick
and over £50 worth of games software,
would cost over £220. will sell for £160.
Hassocks 3857. after 4 30pm
m Apple 2 32K. disk and cassette
interfaces, fully Apple compatible,
assorted software and manuals, recently
serviced, sadly it must go so only £280.
Ian Harrison. Uanberis (Wales).
872295.

Acam Atom 12K ROM I2K RAM PSL'.
leads. Magic Book + £50 worth of
software me GalaxiaS. Star-Trek. 747
Space Panic. Scramble etc. £120. Derby
(0332)514033.

168 ZXI1 with quality eased keyboard,
large software library . six books, compil¬
er and assembler, worth over £200. will
accept first offer over £»D. 0326 312463.
Wanted Vic 20. willing to pav up to £100.
£120 with cassette deck. 051-428 5169;
161 Grange Lane. Gatterre L25 5DY.
England. 4 30

0ric-l 48K as new. two months old plus
mind games, graphics demo progs. £120
ono. 047 553 368.

Atari VerS. 20 cartridges, new joysticks
and cartridge rack, cost £600-* . sell for
£2(1) (will not split), or will exchange for
Atari 800 48K 041-9469110.

ONvnW Praxis 35 electronic daisy wheel
typewriter, this is not fined with inter¬
face. still under guarantee £210 ono. 1.
Parish . 2 Collycrs Close, Darlington. Co
Durham DL22ES (letters only).

Stuff MZ-P5 printer as new £210 or
nearest. 1 Parish, 2 Collycrs Close.
Hurworth. Darlington. Co Durham DL2
2ES. letters only please
Wanted. Dragon 32K computer plus
joysticks Harlow (0299) 415409 after
6m. ask for Michael
Printer ICL KSR RS232 300 baud, full
ASCI 1 set . tractor feed, upper and lower
case. 120 column typewriter, quality
print, ideal for word processing. £175.
0252 877174.

ZXS1 16k with manual, leads and three
tapes. Defender. Monster Maze. Raid¬
ers. Good condition. £65 ono must sell!
01-4028551 evenings
We M games Ratracc. Super Lander.
Chess £10 each. Kosmk- kamikaze.
Space Panic. Back Gammon. £4 each;
send sac to T. Canncll. 14 Parkstonc
A vc. Bristol BS7 0BY Don't mis* this
amazing offer!

Spectrum RA M pack ( 32k) for sale ( issue
one only) £15. also some software.
Richard. Tel 01-622 3870 after 8pm
Wanted; Pel 2001 for Spectrum 16K.
cassette deck, (both new) and games
book, Southampton (0703) 556823
(eves).

Atari VCS with extra paddfcs and
keyboard controllers, complete with
Combat. Asteroids. Road-Race.
Adventure Air-Sea Baltic and Basic . will
swop for Lynx 48k or Dragon 32. 01-373
5221

18-ZX81 £35. keyboard + ease £30.

I/O port £5. books £2 each, software
1K-£1.50. l6k-£2 50, or swop all for
Atari 822 printer. 01-584 1 151 .

Sinclair 16k ZX81. complete with all
leads and manuals etc. plus one book,
cost £100+. quick sale for £45. ono.
Oxford (0865) 772542
Sharp MZKOk 13 months old. integral
screen and tape, instruction manual and
some tapes. £250. Formby 07048 75063
after 5pm

ZM1 16k, professional keyboard. Prog¬
rams including Mazogs. Trader. Chess.
Flight Simulation and many more Seven
ZX magazines, all worth £180, selling for
£80. Tel: 01-254 5952 (evenings)

Acorn Atom 12k RAM. 12k floating
point ROM + Ross Eprom with 33 extra
commands, also includes £70 worth of
top quality software, price £140. Wol¬
verhampton 700739.

Atari VCS with Combat. Space Invaders.
Asteroids. Indx 500 cartridges, joys¬
ticks, paddles included. £100. Belfast
703036 (Northern Ireland, after 4.30pm
on weekdays only).

Atari games on cassette for sale or swop
02 1 • 520 87 1 7 ( early eve nmgs if possi blc )
Atari VCS plus 14 cartridges with joys¬
ticks and paddles. £120 ono. will not
split Ruishp 37284

Atari, swop Zaxxon. Protector. Astro
Chase. Prcppie, Air Strike. Sea Dragon
for Miner 2049ER. Chopliftcr Shamus.
Apple Panic. Offers 051-2208927
Atari 400 16K. 410 recorder, both under
guarantee. Basic plus manuals, joys¬
ticks. Star Raiders. Prcppie. Airstrike
and membership of software library.
£225 Highetiffe (04252) 72271.

Atari 4110 Basic assembler and Star
Raiders cartridges. 410 program recor¬
ders. joystick. £195, perfect condition.
027588 5040.

Wanted Alan 810 disk dnve. and 48K
RAM module, please write to Gary
Tinsley. 6 BradwaH Road. Sandbach.
Cheshire CW1 1 9AB slating price etc
Atari 400 cassette recorder and £250
worth of software including Pacman.
Star Raiders and Missile Command
Whole system worth over £500. will
accept £375. Buyer collects. Dunstable
602617 (weekday evenings).

Atari software to swop or sell, various
cassettes and cartridges, all perfect
condition. Mcthcringham 0526 21187
(after 6pm)

Wanted Atari computer 400. swop Mur¬
ray CBH1500 plus SWA Meter Coxel
Cable. Mike. Aerial 7ft. Also want Atari
cassettes. 01-267 5295.

Atari 400 games for sale. Empire of the
Overmind. Airstrike. Savage Island! .

£10 ci

new Rock (0299) 266136
Atari 44X1 with program recorders. Basic
cartridge . 2 joysticks, also 3 manuals and
Star Raiders. Missile Command and
Pacman cartridges. Worth over £400.
accept £250. J Trainor. 1 Park Drive.
Littlcovcr. Derby DE3 6FY
Atari computer games, swop Asteroids,
offered with instructions for I umbo Jet
Under or Miner 2049ER Offers consi¬
dered (48k DiskiCassette). 021-705
4340

Atari 44 x i computer complete with Basic,
joysticks, cassette recorder, various
games, only five months old, £195.
Sunderland 26325 1

Atari 44X1 including Basic plus joysticks,
paddles etc . £200 worth of softw arc . c g. .
Star Raiders. Sub Command, will accept
£195 ono. 0786 2370 (days). 0324 812935

I VCS plus 15 cartridges, all hand
controls, including keypads. £250 ono.
01-749 6233 <6-8pm)

Atari VCS with Combat cartridge, six
months old. £55 ono. Also Asteroids.
£15. Space Invaders. £12. Night Driver.
£12 cartridges. 021-358 1010
Wanted — Arrow Chip 15. Anyone
willing to sell me one — please contact
Richard on 0742 255% (days).
me A or B wanted, will buy or swop w ith
Vic 20, cassette unit, joystick. 16K
RAM, Games worth £50. Difference
paid. S. McGowiglc, 15 Nelson Street.

BSC Jeremy Ruston Compiler. £20 or
swop Level 9 software. Julian — 01-435
1738 (after 6pm).

BBC enthusiast wishes to swop Seikosha
GP100A graphic printer, cable and
software for any BBC disk drive . directly
BBC compatible printer Cost new £247
James -(0226) 41753.

BBC Model B. disk interface. Canon
drive, three months old. manuals, soft¬
ware. tapes, disks, utils, games. £650
ono. May split. 01-373 0599 (evening/
weekend)

BBC Model B. disk interface. BBC
recorder, Seikosha GP100A printer,
most Acorn soft and superior software,
little used. Emigration forces reluctant
sale.£575ono Mayspbt. Steve— 01-668
8342

BBC 32 k games cassette with six prog¬
rams. Pontoon. Poker. Bridge. Hang¬
man. Simon. Sliding Squares Puzzle, all
mode I colour graphics . only £4 for all six .
kawal Banga. 46 Derby Unc. Derby
DE38UA.

Nr sale . BBC Model B. £335 Tandy line
VII printer. £165 Both for £475. Joe
Griffin— Crewe 8202 13
Aram BBC 16k ROM - 4k Eprom BBC
Basic PC board lor Atom with instruc¬
tion booklet. £35. 01-363 6075
Sharp MZKOk. 48k RAM . green screen,
manuals and games, plus MZ80A Basic
included, as new . buyer collects, £325.
0702 330015 (Southend)

Sharp MZ80K software . first class origin¬
al games. Exocct Missile Attack. Panzer
Tank Apollo and many more Also
proven business packages, tape or disk.
0789 840088205590.

Sharp MZ8l)k. interface, printer and
disks . plus loads of softw are . £999 or will
split, disks suitable for MZ80A or
MZ80B Steve — Basingstoke 771247
Sharp MZ80R micro 48k. complete with
Basic tape and some games, has seen
little use — gone up to bigger system,
price £325 Lincoln 722292
Spectrum software tape for sale . contains
Time Gate Hobbit VU-3D. Rescue.
Penctralor. Orbilor. Flight Simulator.
Gulpman All for £15 0259 214374
(evening/wcekend).

Wanted Spectrum 48K in exchange for 10
speed Tour dc France Raleigh Racer, as
new . can deliver anywhere . 076 46 2522 .
168 spectrum brand new. un wanted
gift, still in box . A ho software worth £30.
Will accept £100 Mr MacNiven.089684
249 (after 5pm).

488 Spectrum + printer. + six rolls of
paper. + £140 worth of software. Also
£20 worth of books Togelhcrwoth£400.
Sell fur only £235 Paul -061-973 2229
Spectrum software copier. £2.45. makes
backup copies of your precious software,
easy to use For personal use only —
16k. 48k J R Bnggs. 33 Wessex Gar¬
dens. London NW 1 1 9RS
Spectrum, software, sell or swop, silver-
softs Ground Attack, new. unwanted
gift. Richard after 5.30pm. 080428-321
Specrum software. Hobbit £11. Arcadia
£4, Galaxians £4. Hobbit includes in¬
structions and the book Huddersfield
(0484 ) 661403. also Krazy kong
(48+ I6K versions) £4.

Specrum 1 6k Manuals Psion Simdair
Video Hewsons software . little used £80
devizes (0380) 3341

Spectrum club, anyone interested in
starting Spectrum sotware exchange
club ( 1 6/48K ) send sac a nd list of progs to
Paul Ockcndcn. 61 Alboume close.
Brighton.

Spectrum software: swop or sell. 3D
Tanx. Joust. Horace Goes Skiing. Gala¬
xians. Cruising. Blind Alley. Meteor
Storm, Spectres. Spectral Invaders. Sea
War Steve on 01 -452 9436.

Acem Atom 1/2 MH3. 12k RAM. 12K
ROM. 6522 and FP ROMs printer
interface, all manuals and leads, soft¬
ware includes Frogger. Galaxians. Pac¬
man. Invaders. Space Panic. Defender.
Zodiac, will sell £100. (0487) 841064

PCN JULY 28-AUGUST 3. 1983

MICROSHOP

Rate*: £10 per single column cm. Minimum size 3 cm. Series discount available Mechanical Data: Column width. 1 column
57mm. 2 columns 1 18mm. 3 columns 179mm. Copy Dates: 10 days prior to publication.

Contact: Ian Whorley on 01-323 3211.

Software

ADVENTURE GAME

DRAGON 32 & COLOR COMPUTER

“DOMAIN OF THE GODS”

Pit your wits against the Gods o! ancient Greece
Wander through their Domain in search of the
secret of Eternity Can you deteat the Centaur’
Will you get the dark secret ot the Hydra? Will
Neptune give you h« help? Should you trust the

• Random features (No two games are identical)

• Sharp, witty and stimulating

Price: C7.05 (Inclusive)

Chegue® Postal Orders to.

•nterco Associates
162A Ballards Lane
Finchley. London N32PE
Tel: 01 -349 3463

Looking for
Spectrum Programs?

ORIC1

CREATE HIGH SPEED PROGRAMS WITH
EDITOR ASSEMBLER: DISASSEMBLER:

IMMEDIATE TESTFACILITY.

Instant, direct, poweriui machine code is available
at your fingertips with this composite program
Auto address and disassembly ol code with control
key back and forth scrolling for input and editing
direct assembly and error message support similar
to programming in basic

Cursor controlled Editor with direct change, insert
and delete with automatic expansion and or
closure ot text Decimal ot Hex input or numerics
with toggei decimal-hex display ot address and
operands Mixed code. data, string inputs up to 255
characters Relocate code function
Full 6502 code plus labels with autobranch
calculation Pseudo-ops ORG. START. END
DEL. EOU DEFTS. DEFW. DEFS. DEF$
Optional high speed hex -display as per a monitor
or lull disassembly with address, hex code label,
mnemonc. operand and symbols table, output to
screen or printer

Complete with Instruction Manual. CIS

Mairtfuun EDITOR

adds extra commands to the machine Change.
Find. Get. Insert. Delete Move Value. Organ.se
Centre and Right Justify Text
Can be used as a word processor database or
program edilor. handling up to 24k on a 32k
machine £tS

RENUMBER resequence Ail or part ol a program
may be renumbered with update of GotoGosub
Then Resume statements £6

MONITOR produces machine code programs on
tape Input, display, record, and test code hard
copy feature Input output em HEX or ASC codes
CIS

MICROPLOT

19 THE EARLS CROIT
CHEYLESMORE
COVENTRY CV3 5ES
TEL: 0203-503038

MtRDERONSPEC ...

MICRO CHESS .

ESCAPE . .

NIGHTFLITE .

MAZECHASE .

INVADERS _

...£530

...£4.95

...£4.95

...£5.95

...£4.95

...£4.95

ABOVE PRICES INCLUSIVE OF VAT AND P*P SAL
FOR FULL LISTS

Cbeq«ee.P.O.'e crossed and payable to:

VYAJYS H-K.

11 MARGARET AVENUE.

ST AUSTELL. CORNWALL

TEL (0726) 61791

54 RACE ACE H

fO* MOTOR SPORT E*T>«US1ASTS^™

1* STAftlf CROFT. CHELMSFORO ISSfX CM1 ST

LYNX 48K SOFTWARE

C4.75 each inc. pip. o**umea w

QUAZAR COMPUTING,

ns rat p ib asa. mruk. nssa

Other program! oho eoeilobls, teed lor detail!.

A SINCLAIR SOFTWARE HARDWARE
SPECIALIST CONVENIENTLY SITUATED
NEAR Ml AND M62 MOTORWAYS

PHILIP COPLEY HI-FI LTD

6 WESTLEY STREET. OSSETT,
WEST YORKSHIRE
TEL: 0924 272545

HOURS OF BUSINESS TUE-SAT 10.30-5 30
OPEN BY APPOINTMENT UNTIL 8P M

K-RAM

OFFER THE BEST FOR THE ZX SPECTRUM

JCTP»C Ultimata 1 6 or 48K DM

• •- • ---fj SO

Quasi i6w«8K£SM
S-.-rwrrsn'Wrs K
Artc16or«XC*M
- JO Combw Tons HoeM Pwwtnlor Cooke
W CytafRats liwadars Mad Martha Light CycXas. ETX.

BLACK HOLE

simursio

PLANET Of DEATH

At Folly 30 Turn

THREE GOOD REASONS

WHY WE TREAT YOU THE BEST

All postajj^jucking tm

K-RAM

1« Danbury Hoad. Reinham. El
Tat (04037)55021

STOCK CONTROL

‘STOCK CONTROLLER’ RUNS IN 48K ON
ZX SPECTRUM

400 STOCKLINES

STOCKLINE A TOTAL STOCK VALUE

MINIMUM STOCK LEVELS

CALCULATES SELLING PRICES

PROGRAMMED FOR USE WITH OR WITHOUT ZX

PRINTER. SPECIAL 'BINDER PRINT

FREE POCKET (INDEX FOR YOU* HUNTED STOCK UVtLS OR

SELLINC PUCES

£12.50 incl. V.A.T. & p.p.

DIPAK SOFTWARE.

UNIT 10. TTTCHHCU) INDUSTRIES EAST STREET

NEW LOW PRICES

COMMODORE 64 £199.95 + VAT
1541 DISK UNIT £199.95 + VAT
NEW 1525 PRINTER £185.00 + VAT

SOFTWARE
FOR YOUR

CBM 64

ST-

n.M Matiti
CT 00 Stir Tran

n.M rm

POO Grid Raaaar

ON Ceatrapadt

A NEW ADVENTURE FOR YOUR 64

Dead Man j Gold CS 00 We dare you fc> aaak (he i
— *■— * to tha correct grave

Race Fun. Quackars. Escape M CP .Ci

c— -iger,e«atontyC5 75. wid‘ - -

5, Fhddan City CS 95
> m Mock from -Imagine Sc

APING JACK £5.50

Ttxa ■ one game *e iuM can t atop otaymg

OeeaePOila

BYTEWELL,

Ml COURT ROAD BAARY S GLAN FB TEW

Tel: (0446) 742 *91

PCN JULY 28-AUGUST 3. 1983

83

CASTLEMERE (PTY) LTD.

The largest retailer of BBC Software, books and accessories in South
Africa invite UK producers in the BBC Micro market to contact us for
distribution, sales etc of their products throughout the sub-continent.

Write or phone (from UK dial 01027-21 77-1 148)

PO Box 7, Wynberg 7824, South Africa

BUY YOUR SOFTWARE AT A DISCOUNT

20% off Recommended Retail Prices Games and Serious Programs .
tapes produced by reputable software houses including Virgin Games
Bamby Software & Microtax. Send S.A.E. for further details:

TAPESOFT (PCN)

55 Morlcy Road. Twickenham. TW1 2HG
_ 01-892 1909 _

Software for
PET SHARP
TEXAS

CIRO SOFT

PRESENT
GAMES FOR ORIC

combining the use at your tor one or more player*
memory end your arcade Random hanarda appear
(km you can recover toe requiring you to change
ifwee lor the foundation your strategy Great ton.

WlnctpAp Wind pAp

COMING SOON

PARACHUTIST Take oN your aircraft, avoid toe ctouds
and drop and land your parachutist to aoore points
FRUIT — Standard fruit machine game with Win Nudge
MlncI pAp for both

CIRO SOFT

I For All Your Micro Seeds

39, High Street, Ralnham, Kent
Tel: (0634) 376702

One 48KC40 Software C1M

SSSSSnaOj m

OK interface IN «

MICROSHOP

I Accessories

MUTH

iwm hr

WADY UNIT win 9 « l , 0 H

DIRECT FROM OUR FACTORY

■r-hgnuanorvicw

THE NEW DELTA 14 HANDSET FO« THE BBC

liHd tor years by DATABASE nmn mts* t*gh Soec.licanon handsels
law 14 pushtMtons 10 lake the strain oW ot your heyDoeid
The DELTA 14 comes mlwo gads One handset will plug into the A d to
are* analogue spring return loyshck plus three ttunon hmchons
The second part is me Of LTA UB 1 adaptor Do. undi connects die 15
JJJjf 0 to me uni port Th* jrues 12 burtons oo 1 4 . 3 maim rue

0 connectors 9 »ay temaie plug ot 1 5 way male plug complete wrlh hoods

tin

DioplugSmy?40deg SO)

9 my lemeie plug moulded lo 1 metre oi 9 core .eld C2 SO

AEMAL SPUTTER SWITCHES a 54

Cheque or POmd, order Pnns tuoM ua.UOf VAT Indus Post unmedkMe dtappft* - 7 day money pac* guarani*

VOLTMACE LTD., PARK DRIVE. BALDOCK, HERTS.

Callmp welcome Monday to Friday Talephona: (0462)8944 10

GRAPHICS

' An Intelligent Graphics Card which can ha used an
virtually an^compirtar via serial or parallel

atymiiad with the IS i2S tail

' Terminal Emulation giving FULL HALF OUPLEX
and LOCAL MOOES

COMPUTER AIDS

tanaee Cr . Hinckley lerci It 19 OSQ

ORICUSER

PROGRAMS — NEWS — VIEWS

£1 FOR SAMPLE ISSUE
Cheques or PO payable to

ORICUSER

20 WYNFORD HOUSE
WYNFORD ROAD
LONDON N1

BBC COMPUTERS

FROM

FAIRHURST INSTRUMENTS LTD.

WORD PROCESSING PACKAGE £999+ VAT

Includes: BBC B' with disc interface, disc drive, daisywheel printer,
Wordwise. all cables etc

BBC ‘B’ Disc Controller Chips, Disc Drives and Upgrades.

ALL FOR IMMEDIATE DELIVERY
We stock the complete range of BBC equipment including, Econets, Printers.
Colour Monitors. Plotters. Graphic Tablets and Software

Apple and Torch Computers available

Phone: Wilmslow (0625) 533741
Dean Court, Oean Row, Woodford Road, Wilmslow.

Games

Books

-f—V SPECIAL OFFER

jO^Star DP 510 80 column

L-V

HOSCOLTO uuararauu nwvs price ■>

SMITH-CORONA TP-1

DAISYWHEEL PRINTER £427

P&P £8. add 15% VAT to total order value

ROSCO LTD

FREEPOST. BIRMINGHAM B20 1BR
TEL: 021-356-7402

★ PABSOIT ★

SHARP MZ80& DRAGON 32

A NEW GENERATION OF
GUARANTEED QUALITY GAMES

EXOCET An ACK BEST REVIEW 83
BOMBER ATTACK; BIORHYTHMS
FOOTBALL POOLS FORECAST

£5.00 per game. Cheques PO to

PAB SOFTWARE SERVICES

37 WESTFIELD CRESCENT
WELLESBOURNE, WARWICK

BOOKS (or ATARI

iompctf anoas

First Boult or ATAJtl £12.95
Second Boot, ul ATARI £1 2.95
Fust Booh o4 AT ARI Graph*. £12.95
Mapping the ATARI £14.95
Inside AT ARI DOS £17.95

Mechanr language For Beginner. £12.95
OTHia PUBlISHtRS
De Re ATARI £17.00
ATARI Technical Users NtUec £1 7.88

Making the Mod oi ATARI £8.95

(Aimm lor Ihe ATARI £4.45
AT ARI Camec 4 Recreations £12.95
Has* fsrrtisrs lor Itie ATARI £10.45
ATARI thugrammmgrS 5 Programs £11.75
ATARI Sound and Graph* s £7.541
Some Common BASir Programs lor ATARI

EfTkEkEElt ctlkps

40 The Marin Hate, Chippenham. Witts, SN15

Tel. (0249) 657744 or (0249) 654321
ext. 39.

INSURE

YOUR COMPUTER

Impact damage. Fire. Thefts Trenail Insurance
tor your Computer Equipment:

f 1 lof 1.500 cover CSOOpaClO(OMcmss)

C1.500IOC2.500 CtSOOpsCH (access,

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Aah tor dura*

; KGJ. Insurance Brokers

T. 1103443 *53512545 BT"#*

ORIC-1 OWNERS.

Tangerine created Oric-1 now TUG creates
the rest An independent users group with a
solid reputation tor progressive system
support Monthly newsletters, meetings,
software, hardware, reviews, advice and
lots more We have a proven record of
performance on our system Join TUG.
You'll like us. we do' Send £1.00 + S.A.E.
(A4) tor sample newsletter and details
Tangerine Users Group. 1 Marlborough
Drive, Worle, Avon BS22 ODQ.

PCN JULY 28-AUGUST 3. 19K3

85

MICROSHOP

Accessories

Hardware

NEWBRAIN

»s th« launch of

SUPERTYPE

rd Processor lor tha Nawflrain put

imn ThisissimpiytnabastavailatXa

Wa can now supply yo . “■ - ■

for only £999' Th.s ir

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you with* COMPLETE WP SYSTEM

mcludaa tha suparb new Brother

and even SuparType rtsatf Contact us lor a damonatra

CHESS - a suparb opponent with 6 levels of play
Worthbuyinothemicroloc C1495

DATASTORf - Make it your address book, diary, cl tent
info Me etc Choose up to 13 title headings Searching
may be on up to S of these simultaneously ' Very
versatile and only C15.00

BANK ACCOUNT - Tha most comprehensive yet the

NEWBRAIN DISCS ARE HERE! HI
contact us aasAHXAm V fo« ears V otuvtav or a suet a
c*md»c»y*temi

<% MICRO LTD.

IF ALL THE ANSWERS ARE YES, AND IT
COSTS LESS THAN £20, BUY IT

IT MUST BE WORDSWORTH!

ALSO AVAILABLE DSkECT. PRICE 07 25 FROM

IAN COPESTAKE

23 Connaught Crescent. Brookwood. Woking, Surrey
GU24 OAN Telephone 048 67 Brookwood 4755

BCPL FOR THE BBC

The most powerful language for
the BBC microcomputer,
includes a full screen editor and
assembler Language ROM. 450
page Manual. Utility disk
Published by Acomsoft — £99.65
also BCPL for any CP/M — £172.50

Richards Computer Products Ltd

Oioe 0X11 9QA

Telephone 0235-850218

SHARP

MZS0A

THE INTEGRATED

SMALL BUSINESS

COMPUTER WITH

INTEGRATED
ACCOUNT PACKAGES

WRITE OR CALL FOR DETAILS

WEST CDflST
PERSDriflL COfTlPUTERS

47 KYLE STREET. AYR HA7 1 RS
Phone: 0292 285032

Programmers

If you

have written or are
writinganoriginal
machine code
arcade

quality game for the
VIC-20
or the
Spectrum,

WE HAVE AN IDEA
which could make your
game

THE BEST SELLER
IN EUROPE

INTERESTED???
Tel:01-861 1088
NOW.

SOFT MACHINE

A selection of the very best Soft¬
ware, Books and Accessories avail¬
able for ZX81 , Spectrum, BBC,
Dragon , Vic20 and Commodore ’64
Microcomputers.

At 3 Station Crescent
Westcombe Park
London SE3
Tel: 01-305 0521

or send SAE lor tree catalogue
(state which computer)

PCN JULY 2H- AUGUST 3. 1983

IVllL.nUonU

Program

converters

We need you urgently to convert
programs from: Spectrum to
Commodore 64; Spectrum to the
V ic20; Commodore 64 to the Vic
20; and Spectrum or 64 to Atari.

These conversions are needed
for listing books that we are
publishing later on in the year.

If you are interested
please ring Fi Inchbold
on 323 3211x365

Hit's worth
doing ONCE . . .

ICl .with understandable plea¬
sure. has announced in the last
week that it has been awarded a
validation certificate for its
Pascal offering.

Meanwhile in Hobart. Tas¬
mania. Professor ArthurSale. a
leading figure in the develop¬
ment of the Pascal Validation
Suite, has been closely involved
in persuading manufacturers to
go for certificates.

His list of successes includes
several household names. One
occu rs more than once , because
more than one of its depart¬
ments has obtained such certifi¬
cates.

The name is ICL.

Another micro first?

Southampton-based Quicksil-
va is flying the flag abroad. It
has written to PCS saying it has
‘become the first British Soft¬
ware House to establish a North
American operation’.

Several British software
houses will be surprised to learn
that Quicksilva has achieved
this remarkable first. Some of

them (with no great success,
admittedly) have operated in
North America at various times
over the last decade.

Perhaps Quicksilva meant to
say it had become the first
British software house to estab¬
lish a North American opera¬
tion this week, month, or even
summer?

NEXT WEEK

i — We look at the communicating Mupid micro from

— A full Pro-Test of a new colour plotter for the

Austria.

• Periphery
IBM PC.

— W e compare two Spectrum versions of Forth.

— Software fantasy for the Atari, Commodore 64,
Spectrum and Oric.

“ — CP/M is the subject of this pull-out guide.

7^

■ ■-

Bonus! Extra

We did an injustice to Intcx Data-
log’s new payroll system for the
Commodore Pet Iasi week when we
said il was designed for up to 25
employees. Well, it may be a
package for small business — but
not that small. In fact. Bonus! will
cater for up to 250 employees
. . . sorry.

Number up?

Another dropped digit error! MCP,
the company with the Oric joystick
interface and speech synthesiser
(Routine Inquiries, issue 19) is on
0792-844465.

Vic too quick

In our round-up of word processing
packages for the Commodore 64
issue 1 6. we reviewed Quick Brown
Fox for the Vic 20 on the under¬
standing it was virtually the same as
the not yet released version for the
Commodore 64. But we now know
that's not the case.

We'll try again, though, when we
get the proper Quick Brown Fox 64

PCN DATELINES

PCN Datelines keeps you in touch with up-coming events. Make
sure you enter them in your diary.

Organisers who would like details of coming events included in

PCN Datelines should send the information at least one month
before the event. Write to PCN Datelines, Personal Computer
News. 62 Oxford Street. London W1 A 2HG.

UK EVENTS

Event

DatM

Vmuc

Organisers

8th ZX Microfair

August 20

Alexandra Palace. London

Mike Johnstone. 01-801 9172

Acorn User Exhibition

August 25-18

Cunard International Hotel.

Computer Marketplace Ltd.

London

01-9.30 1612

Computer Open Day

September 1

Draganora Hotel. Leeds

Tony Kaminiski. Couchmcad Communications

Lid, 01-778 1M2

Video. Audio and

Sep 16-18

Bradford Exposition

R. Cooper,

Computer Show

Centre

J Wood & Sons Ltd.

Bradford 720014

Home Entertainment Show

Sep 17-25

Olympia. London

Montbuild Ltd. 01 -486 1951

Computer Open Day Exhibition

September 22

Central Hotel. Glasgow

Couchmcad Communications Ltd. 01-778 1 102

Microcomputers in Business

Sep 27-29

Warwick University. Coventry

Peter Bubb. 01-892 4422

Personal Computer World Show

Sep 29-Oct 2

Barbican Centre. London

Montbuild Ltd. 01-486 1951

Computer Fair

Oct 2

The Sir Frederic Osborn School.

R Brown

Welwyn Garden City

Welwyn Garden City 23367

European Computer

Oct 4-7

NEC. Birmingham

Clapp & Poliak

Trade Forum

Europe Ltd,

OVERSEAS

Event Mm

International Micro Computer Aug 2-5

Exhibition

National Computer Business & Aug 16-19
Office Systems

Personal Computers & Office Sep 5-8

Automation Systems Exhibition

Australian Computer Exhibition Sep 13-16

International Peripheral Equipment Sep 13-15

& Software Exposition

Kuala Lumpur. Malaysia

Auckland. New Zealand
Amsterdam. The Netherlands

Melbourne. Australia
Mosconc Centre. Anaheim. USA

Conference & Exhibition Management Services

SDN BHD. 9 A Jalan SS24/8 Taman Mcgah.

Pctaling Java. Selangor

Trade & Industrial Exhibitions. 12 Heather

Street. Parnell. PO Box 9682. Auckland

RAI Gehouw BV. Europaplcin 2. 1078 GZ.

Amsterdam

Riddell Exhibition Promotions PTY Ltd,

166 Albert Road. South Melbourne. Vic 3205
Cahners Exposition Group S A. 0483 38085

PCN JULY 28-AUGUST 3. 1983

Roland DG

The clear
choice for text
and high
resolution

3

Roland (UK) Ltd Great West Trading Estate; 983 Great West Rd , Brentford Middx TW8 9DN
Telephone: 01 -568 4578 Telex: 934470

Announcing more exciting
programs for the BBC.

Acomsoft is the software division of Acorn
Computers, the company that designs! and huilt the
BBC Microcomputer. Here are four more exciting
programs, all designed to get the most from your BBC
Micro.

Magic Carden (£9.95) is a cassette based on
Shirley Conran's successful hook. It’s a problem-solving
program which provides the complete beginner with
instant answers to the questions of what to plant and
when*. Simply tell the computer whether you prefer
a shrub or a flower, the type of soil, light and shade
conditions and n*quin*d flowering time and the
computer will come up with a selection of |M»ssible
plants.

Draughts^ Beversi(£9.95)isarassettecontaining
two traditional hoani games for you to play against
tin* computer. Both give a graphic dispkn of the board
on the scn*en and you can enter your moves w ith either
kcyl>oanl or joystick. The gam«*s can 1m* played at
varying levels of difficultv and on the higher l<*vels you
will find the computer tu he a very worthy adversary.

Hopjier (£9.95) is a game on cassette which can
he plaved w ith either key hoani or joysticks. Hop the
frog acmss the busy motorway try ing to avoid four lanes
of fast-moving traffic. To get acmss the river to the
frog's lair you must leap on to the logs and turtles' hacks,
hut beware of tin* diving turtles, tin* crocodile and
the snake.

How to get Acornsoft programs.

If you're a credit can! holder and would like to
buy the pmgrams show n in this advertisement, or if you
would like to know the address of vour neamst stockist,
just phone 01-200 0200.

Alternatively, you can buy the pmgrams dimctly
by sending off the order form below to:

Acornsoft, c/o Vector Marketing. I h-nington K state,
Wellingborough. Northants \\8 2RL.

Also use this form if vou would like to receive
the curmnt fn*e Acornsoft catalogue.

Please allow 28 davs for delivery.

® < Credit ( lard Holders. Telephone 01-200 0200.

BCPL (£99.65) is a flexible modern stnielum!
language dial's very easy to learn. The package consists
of a BCPL language ROM. a 40/80 disc and a 450 page
User tiiiide. The disc contains the BCPL Compiler,
a Screen Kditor and a 6502 Assembler. BCPI, is
particularh good at handling Input and Output and is
ideal for writing utility pmgrams and to develop games
and commercial packages.

To: Acornsoft, c/o Vector Marketing. I h-nington K.state.
WellinglMiroiigk Northants NN8 2KL

Please send me the following:-
PROORAM PRICK 61 WITH

Cjrdrn K9.««S

TOTAL

$8X04

Ilraughwa Rev-rsi V I.*!.",

$8020

ll..Lrr VMO:,

$8023

bopi. m<u

SMI .03

Ttmi.

I enclose PO/cheque payable to Acornsoft Ltd.

Or charge my en*dil card,
t lard Number

( \n»-\/ltinrfs/\ isi/Wr» (IMrlr)

Please send me the Acornsoft brochure □

Name _ _ _

\ddress _

_ Postcode _

Signature _ rewr

V. 1324763 \ VI \.k 215 8123 K'i

ytCORNSdFT